Electric assembly and vehicle having the same

Abstract

The present invention discloses an electric assembly and a vehicle having the same. The electric assembly includes: a housing, a speed reduction mechanism, a decoupling mechanism and an oil guide structure. The housing has a speed reduction chamber and a decoupling chamber connected to the speed reduction chamber. The speed reduction mechanism is arranged in the speed reduction chamber and has an output end. The first half shaft is arranged in the decoupling chamber and has a first end connected to the output end and a second end connected to the output shaft. The decoupling mechanism is arranged in the decoupling chamber and is connected between the second end and the output shaft to achieve coupling and separation between the first half shaft and the output shaft. The oil guide structure is arranged in the speed reduction chamber and is suitable for conducting oil lubrication on the decoupling mechanism. According to the electric assembly of the present invention, the decoupling mechanism can be effectively lubricated, so that the decoupling mechanism is not prone to dry burning during operation, and the operation of the decoupling mechanism is more stable and reliable. At the same time, the oil guide structure is arranged in the speed reduction chamber to conduct oil lubrication on the decoupling mechanism, so that the overall layout of the electric assembly is more compact and reduces the manufacturing cost of the electric assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an electric assembly and a vehicle having the same. Background Art

[0002] In some vehicle models, there are four-wheel drive models with front and rear dual drives to meet the power requirements of the entire vehicle. The vehicle can be equipped with an electric assembly at the front of the vehicle and a fuel drive assembly at the rear of the vehicle, or with a fuel drive assembly at the front of the vehicle and an electric assembly at the rear of the vehicle to achieve hybrid drive. The vehicle can also be equipped with electric assemblies at both the front and rear to achieve pure electric drive. When the vehicle adopts low-torque drive, usually only a single drive assembly is required for driving. Vehicles adopting hybrid drive use a fuel drive assembly for driving. At this time, the idling of the drive motor in the electric assembly will cause certain losses. Therefore, a decoupling mechanism is usually added to the rear drive assembly to decouple the vehicle when it is running in the full speed low torque range, effectively reducing the energy consumption of the entire vehicle. When the torque is high, the decoupling mechanism is closed to ensure the output power. In the related art, the decoupling mechanism lacks effective lubrication when in use, and the decoupling mechanism is prone to dry burning. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electric assembly that can effectively prevent the decoupling mechanism from dry burning, making the decoupling mechanism operate more stably and reliably.

[0004] The present invention also provides a vehicle having the electric assembly.

[0005] According to the first aspect of the present invention, the electric assembly includes: a housing having a deceleration chamber and a decoupling chamber connected to the deceleration chamber; a deceleration mechanism, the deceleration mechanism is arranged in the deceleration chamber, and the deceleration mechanism has an output end; a first half-shaft, the first half-shaft is arranged in the decoupling chamber and has a first end and a second end, the first end is connected to the output end, and the second end is suitable for being connected to the output shaft; a decoupling mechanism, the decoupling mechanism is arranged in the decoupling chamber and connected between the second end and the output shaft, the decoupling mechanism is used to realize coupling and decoupling between the first half-shaft and the output shaft, and an oil guide structure, the oil guide structure is arranged in the deceleration chamber, and the oil guide structure is suitable for guiding the lubricating oil in the deceleration chamber to the decoupling chamber to lubricate the decoupling mechanism.

[0006] According to the electric assembly of the present invention, an oil guiding structure is provided in the housing, and the oil guiding structure can guide the lubricating oil in the deceleration chamber to the decoupling chamber, thereby effectively lubricating the decoupling mechanism, making it less likely for the decoupling mechanism to dry burn during operation, and making the operation of the decoupling mechanism more stable and reliable. At the same time, the oil guiding structure is provided in the deceleration chamber to guide oil and lubricate the decoupling mechanism, making the overall layout of the electric assembly more compact and reducing the manufacturing cost of the electric assembly.

[0007] In addition, the electric assembly according to the present invention may also have the following additional technical features:

[0008] In some embodiments of the present invention, the housing has an axial hole, the deceleration chamber and the decoupling chamber are connected through the axial hole, and the first end passes through the axial hole and extends into the deceleration chamber to be connected to the output end of the deceleration mechanism.

[0009] In one embodiment of the present invention, the electric assembly further includes: a first bearing, the first bearing being arranged at the shaft hole position, and the first end being supported on the first bearing; the oil guide structure having an oil guide channel, the inlet of the oil guide channel being connected to the deceleration chamber, and the oil guide channel having a first oil outlet opened on the inner side wall of the shaft hole, and the first oil outlet being located on the side of the first bearing facing the decoupling chamber.

[0010] In some examples of the present invention, the oil guiding structure further includes: an oil baffle, which is arranged in the shaft hole, and the oil baffle is located between the first oil outlet and the first bearing. At least part of the oil baffle is located on the lower side of the first half-shaft and is spaced a preset distance from the first half-shaft. The oil baffle is suitable for preventing the lubricating oil in the decoupling chamber from flowing back to the deceleration chamber.

[0011] In one example of the present invention, the oil guide channel has a second oil outlet opened on the inner side wall of the shaft hole, and the second oil outlet is located between the oil baffle and the first bearing.

[0012] In one example of the present invention, the oil baffle is annular and is disposed around the first half shaft.

[0013] In one example of the present invention, the oil guide structure includes an oil guide groove, which is opened on the inner side wall of the shaft hole and extends along the axial direction of the shaft hole. The oil guide groove forms the oil guide channel.

[0014] In a specific example of the present invention, the oil guide groove is formed on a side wall of the shaft hole facing the intermediate shaft of the speed reduction mechanism.

[0015] In one example of the present invention, an accommodating groove is provided on the inner wall surface of one end of the shaft hole facing the deceleration chamber, and the accommodating groove extends in a ring shape along the circumference of the shaft hole. The first bearing is arranged in the accommodating groove, and the radial outer end of the oil baffle extends into the accommodating groove and abuts against the side wall surface of the accommodating groove facing away from the deceleration chamber.

[0016] In some examples of the present invention, the oil guiding structure includes: an oil collecting portion, which is arranged in the deceleration chamber, and has an oil collecting tank with an open top and an oil hole connected to the oil collecting tank; an oil channel, one end of the oil channel is connected to the oil hole and the other end extends to the oil guiding channel, and the oil hole is connected to the oil guiding channel through the oil channel.

[0017] In one example of the present invention, the oil guide structure further includes: an oil guide plate, which is arranged on the inner wall of the deceleration chamber, one end of the oil guide plate is located below the oil hole, and the other end of the oil guide plate extends downwardly toward the direction of the shaft hole, and the oil channel is formed on the upper surface of the oil guide plate.

[0018] In some embodiments of the present invention, the decoupling mechanism includes an engaging sleeve, which extends along the axis of the first half shaft, and has a first coupling tooth portion and a second coupling tooth portion. The second end can be selectively coupled to the first coupling tooth portion, and the second coupling tooth portion can be selectively coupled to and decoupled from the output shaft.

[0019] In one embodiment of the present invention, the housing includes: a reduction gear box and a decoupling box, the reduction gear box and the decoupling box are detachably connected, the inner side of the reduction gear box defines the reduction gear chamber, the axial hole is formed on the reduction gear box and passes through the reduction gear box, the inner side of the decoupling box defines the decoupling chamber, a through hole is formed on the decoupling box and passes through the decoupling box, and the through hole is connected to the axial hole.

[0020] In some examples of the present invention, one end of the decoupling box extends into the axial hole, the through hole passes through the one end of the decoupling box, and a sealing groove is formed on the outer surface of the one end of the decoupling box. The sealing groove extends in a ring shape along the circumference of the through hole, and a sealing member is provided in the sealing groove, and the sealing member is in sealing contact with the circumferential wall of the axial hole.

[0021] A vehicle according to a second aspect of the present invention includes the electric powertrain according to the first aspect of the present invention.

[0022] According to the vehicle of the present invention, by setting the electric assembly of the first aspect mentioned above, by setting an oil guiding structure in the housing, the oil guiding structure can guide the lubricating oil in the deceleration chamber to the decoupling chamber, thereby effectively lubricating the decoupling mechanism, making it less likely for the decoupling mechanism to dry burn during operation, and making the operation of the decoupling mechanism more stable and reliable. At the same time, the oil guiding structure is set in the deceleration chamber to guide oil and lubricate the decoupling mechanism, making the overall layout of the electric assembly more compact and reducing the manufacturing cost of the electric assembly.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of an electric assembly according to an embodiment of the present invention;

[0025] Figure 2 is an exploded view of an electric assembly according to an embodiment of the present invention;

[0026] Figure 3 yes Figure 1 Exploded view of the decoupling mechanism shown in ;

[0027] Figure 4 is a schematic diagram of an electric assembly according to an embodiment of the present invention from another angle;

[0028] Figure 5 is a cross-sectional view of an electric assembly according to an embodiment of the present invention;

[0029] Figure 6 yes Figure 5 The schematic diagram at A shown in FIG;

[0030] Figure 7 is a cross-sectional view at one angle of an electric assembly according to an embodiment of the present invention;

[0031] Figure 8 is a cross-sectional view from another angle of an electric assembly according to an embodiment of the present invention;

[0032] Figure 9 is a cross-sectional view from another angle of the electric assembly according to an embodiment of the present invention;

[0033] Figure 10 yes Figure 9 The schematic diagram of point B shown in FIG;

[0034] Figure 11 yes Figure 9 The schematic diagram at C shown in FIG;

[0035] Figure 12 yes Figure 2The schematic diagram at D shown in FIG;

[0036] Figure 13 yes Figure 9 The schematic diagram at E shown in FIG;

[0037] Figure 14 Schematic diagram of the layout of an electric assembly according to an embodiment of the present invention.

[0038] Reference numerals:

[0039] 10. Box body; 11. Speed ​​reducer; 111. Front box body; 112. Rear box body; 12. Electric control box; 121. Box cover; 13. Decoupling box; 131. Sealing groove; 132. Decoupling chamber; 101. Accommodating groove; 102. Fixing groove; 103. Speed ​​reducer chamber; 104. Shaft hole;

[0040] 21. Mainshaft gear; 22. Countershaft gear; 23. Differential gear;

[0041] 30. Decoupling mechanism; 31. Engaging sleeve; 311. First coupling tooth portion; 312. Second coupling tooth portion; 313. Matching groove; 32. Connecting sleeve; 321. Gear tooth structure; 301. Oil seal; 302. Fixed bearing;

[0042] 40. Oil guide structure; 41. Oil collecting portion; 42. Oil guide plate; 43. Oil baffle plate; 44. First bearing; 45. Oil guide groove; 451. First oil outlet; 452. Second oil outlet; 50. Oil baffle; 50b. Oil baffle ring; 51. Flanging structure; 60. Electronic control body;

[0043] 70. Decoupling motor; 80. Drive motor; 90. First half shaft; 91. First end; 92. Second end;

[0044] 100. Electric assembly. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0046] Reference below Figures 1-14 An electric powertrain 100 according to an embodiment of a first aspect of the present invention will be described.

[0047] like Figure 1 and Figure 2As shown, the electric assembly 100 according to the embodiment of the first aspect of the present invention includes: a housing 10, a reduction gear, a first half-shaft 90, a decoupling mechanism 30, and an oil guide structure 40. Specifically, the housing 10 has a reduction gear chamber 103 and a decoupling chamber 132 connected to the reduction gear chamber 103; the reduction gear is disposed in the reduction gear chamber 103, and the reduction gear has an output end; the first half-shaft 90 is disposed in the decoupling chamber 132 and has a first end 91 and a second end 92, the first end 91 being connected to the output end, and the second end 92 being suitable for being connected to the output shaft; the decoupling mechanism 30 is disposed in the decoupling chamber 132 and connected between the second end 92 and the output shaft, and is used to achieve coupling and decoupling between the first half-shaft 90 and the output shaft; the oil guide structure 40 is disposed in the reduction gear chamber 103, and is suitable for guiding the lubricating oil in the reduction gear chamber 103 to the decoupling chamber 132 to lubricate the decoupling mechanism 30.

[0048] It should be noted that coupling refers to the phenomenon that two or more systems or two forms of motion influence each other and even combine through interaction. The decoupling state is decoupling. It can be understood that the electric assembly 100 is used to provide power for the vehicle. The electric assembly 100 is connected to the entire vehicle through the first half shaft 90, the decoupling mechanism 30 and the output shaft and transmits power. The electric assembly 100 is a power output mechanism and the entire vehicle is a running mechanism. The power connection between the electric assembly 100 and the entire vehicle is a coupling relationship. The decoupling mechanism 30 is used to decouple or close the power connection between the electric assembly 100 and the entire vehicle. When a dual-drive vehicle adopts low-torque drive, the electric assembly 100 that does not participate in the drive will idle as the vehicle travels. At this time, the decoupling mechanism 30 can timely decouple the first half shaft 90 from the output shaft, that is, the decoupling mechanism 30 can timely disconnect the transmission between the electric assembly 100 and the entire vehicle, thereby effectively reducing the energy consumption of the entire vehicle.

[0049] Since the state of the vehicle changes frequently during use, the working conditions of the decoupling mechanism 30 also change frequently during operation. The structural components in the decoupling mechanism 30 tend to generate more heat. The electric assembly 100 of this embodiment provides an oil guide structure 40 in the housing 10. The oil guide structure 40 can guide the lubricating oil in the deceleration chamber 103 to the decoupling chamber 132, thereby effectively lubricating the decoupling mechanism 30, making it less likely for the decoupling mechanism 30 to dry out during operation, and making the operation of the decoupling mechanism 30 more stable and reliable.

[0050] According to the electric assembly 100 of an embodiment of the present invention, an oil guiding structure 40 is provided in the housing 10. The oil guiding structure 40 can guide the lubricating oil in the deceleration chamber 103 to the decoupling chamber 132, thereby effectively lubricating the decoupling mechanism 30, making it less likely for the decoupling mechanism 30 to dry out during operation, and making the operation of the decoupling mechanism 30 more stable and reliable. At the same time, the oil guiding structure 40 is provided in the deceleration chamber 103 to guide oil and lubricate the decoupling mechanism 30, making the overall layout of the electric assembly 100 more compact and reducing the manufacturing cost of the electric assembly 100.

[0051] In one embodiment of the present invention, Figure 2 and Figure 14 As shown, the reduction mechanism includes a mainshaft gear 21, a countershaft gear 22, and a differential gear 23. The mainshaft gear 21 meshes with the countershaft gear 22, which in turn meshes with the differential gear 23. The differential gear 23 is connected to the first end 91 of the first halfshaft 90. Furthermore, the first halfshaft 90 and the differential gear 23 are coaxially arranged. Thus, when the electric assembly 100 is in operation, the mainshaft gear 21 drives the countershaft gear 22 to rotate, which in turn drives the differential gear 23 to rotate. This in turn transmits power to the first halfshaft 90 via the differential gear 23, which serves as the output end of the reduction mechanism. The reduction mechanism utilizes a gear transmission method to transmit power to the first halfshaft 90, ensuring precise, efficient, and reliable transmission.

[0052] In some embodiments of the present invention, Figure 3-Figure 11 As shown, the housing 10 may have an axial hole 104, through which the reduction chamber 103 and the decoupling chamber 132 are connected. The first end 91 extends through the axial hole 104 into the reduction chamber 103 and is connected to the output end of the reduction mechanism. Thus, the axial hole 104 is provided on the housing 10, and the first end 91 of the first half-shaft 90 in the decoupling chamber 132 extends through the axial hole 104 into the reduction chamber 103 and is connected to the output end of the reduction mechanism. This provides a simple structure and convenient connection. The axial hole 104 connects the reduction chamber 103 with the decoupling chamber 132, allowing lubricating oil in the reduction chamber 103 to flow more conveniently from the axial hole 104 to the decoupling chamber 132 to lubricate the decoupling mechanism 30. When the electric assembly 100 is in operation, the reduction mechanism in the reduction chamber 103 operates, driving the first half-shaft 90 to rotate, thereby transmitting power to the decoupling mechanism 30.

[0053] In some examples of the present invention, Figure 11As shown, the electric assembly 100 may further include a first bearing 4444, which is disposed at the shaft hole 104, with the first end 91 supported on the first bearing 44. The oil guide structure includes an oil guide channel, the inlet of which communicates with the deceleration chamber 103. The oil guide channel includes a first oil outlet 451 formed on the inner sidewall of the shaft hole 104, with the first oil outlet 451 located on the side of the first bearing 44 facing the decoupling chamber 132. Thus, the first bearing 44 is provided to support and secure the first end of the first half-shaft 90, resulting in a simple structure and effective securing. The first oil outlet 451 is located on the side of the first bearing 44 facing the decoupling chamber 132, allowing lubricating oil to flow from the deceleration chamber 103 along the oil guide channel and directly out of the first oil outlet 451 into the decoupling chamber 132, thereby facilitating the lubrication of the lubricating oil into the decoupling chamber 132 and thereby enhancing the lubrication effect of the lubricating oil on the decoupling mechanism 30 within the decoupling chamber 132.

[0054] In one example of the present invention, Figure 11 and Figure 13 As shown, the oil guide structure 40 may further include an oil baffle 50, which is disposed in the shaft hole 104 and between the first oil outlet 451 and the first bearing 44. At least a portion of the oil baffle 50 is located on the lower side of the first half-shaft 90 and is spaced a preset distance from the first half-shaft 90. The oil baffle 50 is adapted to prevent the lubricating oil in the decoupling chamber 132 from flowing back into the deceleration chamber 103. It is understood that the first bearing 44 includes an outer ring, an inner ring, and a ball structure between the outer and inner rings. The ball structure between the outer and inner rings has a relatively large gap in the axial direction of the first bearing 44. The oil baffle 50 is disposed between the first oil outlet 451 and the first bearing 44, and at least a portion of the oil baffle 50 is disposed on the lower side of the first half-shaft 90 and is spaced a preset distance from the first half-shaft 90. This allows the oil baffle 50 to block the ball structure of the first bearing 44 to a certain extent, so that the lubricating oil flowing from the first oil outlet 451 to the decoupling chamber 132 can be A certain amount of oil is accumulated in the decoupling chamber 132; by providing an oil baffle 50, and at least part of the oil baffle 50 is located on the lower side of the first half shaft 90 and spaced a preset distance from the first half shaft 90, when the electric assembly 100 is running, the lubricating oil flows along the oil guide plate 42 to the first bearing 44 to lubricate the first bearing 44, and at the same time, the lubricating oil flows into the decoupling chamber 132 to lubricate the decoupling mechanism 30. Specifically, the lubricating oil lubricates the first half shaft 90, the meshing sleeve 31 and the connecting sleeve 32, so that the first half shaft 90, the meshing sleeve 31 and the connecting sleeve 32 can operate more smoothly and reliably.

[0055] It can be understood that the decoupling chamber 132 is designed and manufactured according to the size structure and layout position of the decoupling mechanism 30. The first half shaft 90 and the engaging sleeve 31 and the connecting sleeve 32 are all coaxially arranged, and the shaft hole 104 connects the decoupling chamber 132 with the deceleration chamber 103, so that lubricating oil is not easily accumulated in the decoupling chamber 132. By setting the oil baffle 50, a certain height of oil can be accumulated at the bottom of the decoupling chamber 132. When the electric assembly 100 stops running, the accumulated lubricating oil can still lubricate the decoupling mechanism 30, thereby effectively preventing the decoupling mechanism 30 from dry burning and ensuring that the decoupling mechanism 30 always maintains good stability during operation. When the electric assembly 100 is running, the lubricating oil can continuously flow along the oil guide plate 42 into the decoupling chamber 132 to lubricate the decoupling mechanism 30. When the height of the lubricating oil accumulated in the decoupling chamber 132 is higher than the height of the oil baffle 50 on the lower side of the first half shaft 90, the lubricating oil can flow out from the gap between the oil baffle 50 and the first half shaft 90 to the first bearing 44 and flow back to the deceleration chamber 103 through the first bearing 44, completing the recycling of the lubricating oil while ensuring that the decoupling mechanism 30 has good rotation efficiency.

[0056] Preferably, the preset distance between the oil baffle 50 and the first half-shaft 90 can be reasonably set according to the actual need of storing lubricating oil in the decoupling chamber 132. The oil baffle 50 can be an oil baffle ring 50b, or a plate or an oil baffle rib. The specific structure of the oil baffle 50 can be reasonably designed according to actual processing and oil blocking needs.

[0057] In one example of the present invention, Figure 11 As shown, the oil guide channel can have a second oil outlet 452 opened on the inner wall of the shaft hole 104, and the second oil outlet 452 is located between the oil blocking member 50 and the first bearing 44. This facilitates the flow of lubricating oil along the oil guide channel and out of the second oil outlet 452 to lubricate the first bearing 44, thereby making the operation of the first bearing 44 more stable and reliable.

[0058] In one example of the present invention, Figure 2 As shown, the oil baffle 50 is annular and disposed around the first semi-shaft 90. Specifically, the oil baffle 50 is disposed perpendicular to the axial direction of the first semi-shaft 90 and is annular in shape. The inner diameter of the oil baffle 50 is smaller than the inner diameter of the inner ring of the first bearing 44. Thus, the annular structure of the oil baffle 50 is simple and easy to secure. The inner diameter of the oil baffle 50 is smaller than the inner diameter of the inner ring of the first bearing 44, allowing the oil baffle 50 to block the ball structure in the first bearing 44 in the axial direction of the first bearing 44, thereby allowing a large amount of lubricating oil to accumulate in the decoupling chamber 132.

[0059] In one example of the present invention, Figure 11As shown, the oil guide structure may include an oil guide groove 45, which is formed on the inner sidewall of the shaft hole 104 and extends in the axial direction of the shaft hole 104. The oil guide groove 45 forms an oil guide channel. Therefore, by forming the oil guide groove 45 on the inner sidewall of the shaft hole 104 and extending in the axial direction of the shaft hole 104, the first oil outlet 451 and the second oil outlet 452 of the oil guide channel can be arranged in the axial direction of the shaft hole 104 more conveniently.

[0060] In a specific example of the present invention, Figure 11 As shown, the oil guide groove 45 is formed on the side wall of the shaft hole 104 facing the intermediate shaft of the reduction mechanism. It will be appreciated that when lubricating oil splashes within the reduction chamber 103, it is more likely to be concentrated in the middle portion of the oil collecting chamber 103. Forming the oil guide groove 45 on the side wall of the shaft hole 104 facing the intermediate shaft facilitates the diversion and collection of lubricating oil by the oil guide channel.

[0061] In a specific example of the present invention, Figure 12 and Figure 13 As shown, the inner wall surface of the shaft hole 104 at one end facing the reduction chamber 103 may be provided with a receiving groove 101. The receiving groove 101 extends in an annular shape along the circumference of the shaft hole. The first bearing 44 is disposed in the receiving groove 101. The radial outer end of the oil retaining member 50 extends into the receiving groove 101 and abuts against the side wall of the receiving groove 101 facing away from the reduction chamber 103. Thus, the provision of the receiving groove 101 in the shaft hole 104 and the first bearing 44 disposed therein facilitates reliable installation and positioning of the first bearing 44. The radial outer end of the oil retaining member 50 extends into the receiving groove 101 and abuts against the side wall of the receiving groove 101 facing away from the reduction chamber 103, ensuring good sealing between the radial outer end of the oil retaining member 50 and the wall of the receiving groove 101, thereby allowing lubricating oil to better accumulate in the decoupling chamber 132. Preferably, the receiving groove 101 extends through the reduction chamber 103 along the axial direction of the shaft hole.

[0062] Further, refer to Figure 12 and Figure 13As shown, a fixing groove 102 may be provided on the wall of the accommodating groove 101 facing the decoupling cavity 132 , and a flange structure 51 is provided on the radial outer edge of the oil deflector ring 50 b , and the flange structure 51 of the oil deflector ring 50 b is fixed in the fixing groove 102 . Specifically, the thickness of the fixing groove 102 along the axial direction of the shaft hole 104 is the same as the thickness of the oil retaining ring 50b, and the flange structure 51 of the oil retaining ring 50b and the annular main body of the oil retaining ring 50b have a certain distance in the axial direction of the oil retaining ring 50b, so that when the first bearing 44 is fixed in the accommodating groove 101, the side of the first bearing 44 facing the decoupling cavity 132 can be well abutted against the wall of the accommodating groove 101, thereby making the first bearing 44 more stably and reliably fixed. At the same time, the first bearing 44 can play a good role in limiting and fixing the oil retaining ring 50b in the axial direction of the shaft hole 104. There is a certain gap between the annular main body of the oil retaining ring 50b and the first bearing 44, which facilitates the flow of lubricating oil in the shaft hole 104 and allows the lubricating oil in the decoupling cavity 132 to flow through the first bearing 44 from the gap and flow back to the deceleration cavity 103.

[0063] In one embodiment of the present invention, Figure 2 and Figure 12 As shown, the oil guide structure 40 may include an oil collecting portion 41 and an oil channel. The oil collecting portion 41 is provided in the reduction chamber 103. The oil collecting portion 41 has an oil collecting trough with an open top and an oil hole connected to the oil collecting trough. One end of the oil channel is connected to the oil hole and the other end extends to the oil guide channel. The oil hole is connected to the oil guide channel through the oil channel. Thus, by providing the oil collecting portion 41 and opening the oil hole, when the electric assembly 100 is running, the reduction mechanism operates, stirring the lubricating oil in the reduction chamber 103, causing the lubricating oil to splash in the reduction chamber 103. The oil collecting portion 41 collects the lubricating oil splashed in the reduction chamber 103. The lubricating oil flows out from the oil hole in the oil collecting trough and flows along the oil channel to the oil guide channel and flows out from the first oil outlet 451 and the second oil outlet 452 respectively, thereby lubricating the decoupling mechanism 30 in the decoupling chamber 132 and the first bearing 44. Because the oil collecting portion 41 can collect a relatively large amount of lubricating oil, the lubricating oil flowing into the decoupling chamber 132 can fully and effectively lubricate the decoupling mechanism 30, thereby preventing the decoupling mechanism 30 from drying out and, in turn, ensuring smoother and more reliable operation of the decoupling mechanism 30. Preferably, the oil collecting portion 41 can be positioned in the deceleration chamber 103 at a location where lubricating oil splashes most violently, so that the oil collecting portion 41 can better collect the lubricating oil.

[0064] In some examples of the present invention, Figure 2 and Figure 12 As shown, the oil guide structure 40 may further include an oil guide plate 42 disposed on the inner wall of the deceleration chamber 103. One end of the oil guide plate 42 is located below the oil hole, and the other end of the oil guide plate extends downwardly and obliquely toward the shaft hole. An oil channel is formed on the upper surface of the oil guide plate. As a result, the oil guide plate 42 has a simple structure, is securely fixed, and provides effective oil guidance.

[0065] In some examples of the present invention, Figure 2 As shown, the oil guide structure 40 may further include an oil baffle 43, which is disposed on the side of the oil guide plate 42 away from the inner wall of the reduction gearbox 11. The oil baffle 43 is connected to the inner wall of the reduction gearbox 11 via fasteners. Thus, the provision of the oil baffle 43 can block the lubricating oil flowing over the oil guide plate 42, allowing the lubricating oil to flow more stably along the oil guide plate 42, thereby improving the oil guiding effect of the oil guide plate 42. The oil baffle 43 is secured to the inner wall of the reduction gearbox housing 10 using fasteners, making installation and removal of the oil baffle 43 easier. For example, the oil baffle 43 can be secured to the inner wall of the reduction gearbox 11 using screws, or it can be secured to the inner wall of the reduction gearbox 11 using bolts.

[0066] In some embodiments of the present invention, Figure 3-Figure 11 As shown, the decoupling mechanism 30 may include an engaging sleeve 31, which extends along the axis of the first half shaft 90. The engaging sleeve 31 has a first coupling tooth portion 311 and a second coupling tooth portion 312. The second end 92 can be selectively coupled to the first coupling tooth portion 311, and the second coupling tooth portion 312 can be selectively coupled to and decoupled from the output shaft.

[0067] The second end 92 of the first half-shaft 90 is configured to be coupled to the first coupling tooth portion 311 of the engagement sleeve 31. When the second end 92 of the first half-shaft 90 is coupled to the first coupling tooth portion 311 of the engagement sleeve 31, the first half-shaft 90 can transmit power to the engagement sleeve 31. When the second end 92 of the first half-shaft 90 is separated from the first coupling tooth portion 311 of the engagement sleeve 31, the first half-shaft 90 and the engagement sleeve 31 are disconnected from each other. In this way, by controlling the coupling state of the second end 92 of the first half-shaft 90 and the first coupling tooth portion 311 of the engagement sleeve 31, the transmission state between the first half-shaft 90 and the engagement sleeve 31 can be conveniently switched. Preferably, the second end 92 of the first half-shaft 90 and the first coupling tooth portion 311 of the engagement sleeve 31 can be spline-connected, or the second end 92 of the first half-shaft 90 and the first coupling tooth portion 311 of the engagement sleeve 31 can be connected by teeth meshing.

[0068] The second coupling tooth portion 312 is arranged to be coupled to the output shaft. When the second coupling tooth portion 312 is coupled to the output shaft, the meshing sleeve 31 can transmit power to the output shaft. When the second coupling tooth portion 312 is separated from the output shaft, the meshing sleeve 31 is disconnected from the output shaft. Since the first coupling tooth portion 311 and the second coupling tooth portion 312 are both provided on the meshing sleeve 31, the meshing state of the meshing sleeve 31, the first half-shaft 90 and the output shaft are synchronized. In this way, by controlling the coupling state of the second coupling tooth portion 312 with the output shaft and the first half-shaft 90, the first half-shaft 90 and the output shaft can be conveniently decoupled. Of course, the first coupling tooth portion 311 of the engaging sleeve 31 can be set so that the engaging sleeve 31 always remains coupled with the first half-shaft 90 when the engaging sleeve 31 moves axially along the first half-shaft 90, and the second coupling tooth portion 312 can be set so that it can be selectively coupled with the output shaft. Alternatively, the first coupling tooth portion 311 of the engaging sleeve 31 can be set so that it can be selectively coupled with the first half-shaft 90, and the second coupling tooth portion 312 can be set so that the engaging sleeve 31 always remains coupled with the output shaft when the engaging sleeve 31 moves axially along the first half-shaft 90, so as to control the decoupling and coupling of the first half-shaft 90 and the output shaft.

[0069] In one embodiment of the present invention, reference Figure 10 As shown, the second end 92 of the first half-shaft 90 can be provided with an external spline, and the first coupling tooth portion 311 can be provided with an internal spline. The second end 92 of the first half-shaft 90 is spline-connected to the first coupling tooth portion 311 of the engagement sleeve 31. Thus, the second end 92 of the first half-shaft 90 and the first coupling tooth portion 311 of the engagement sleeve 31 are spline-connected, providing a reliable and stable connection. The spline provides excellent guidance and positioning, making assembly and securing of the first half-shaft 90 and the engagement sleeve 31 convenient and accurate. Alternatively, multiple external splines on the second end 92 of the first half-shaft 90 can be arranged axially along the first half-shaft 90, with corresponding internal splines in the first coupling tooth portion 311 spaced apart. In this way, when the engagement sleeve 31 moves axially along the first half-shaft 90 so that the internal splines are positioned between adjacent external splines, the engagement sleeve 31 does not rotate with the first half-shaft 90, allowing for convenient disconnection of transmission between the first half-shaft 90 and the engagement sleeve 31.

[0070] In one embodiment of the present invention, reference Figure 9 and Figure 10 As shown, the decoupling mechanism 30 may further include a connecting sleeve 32 and a fixed bearing 302. One end of the connecting sleeve 32 (eg Figure 10 The end of the connecting sleeve 32 facing the first half shaft 90 shown in FIG. 1 extends into the engagement sleeve 31 and can selectively couple with and separate from the second coupling tooth portion 312 of the engagement sleeve 31. The other end of the connecting sleeve 32 (e.g. Figure 9The end of the connecting sleeve 32 (shown in FIG) that is away from the first half-shaft 90 is supported in a fixed bearing 302, and the vehicle's output shaft is fixedly connected to the connecting sleeve 32. As a result, the connecting sleeve 32 meshes with the engagement sleeve 31, and the output shaft is fixedly connected to the connecting sleeve 32. During operation of the electric assembly 100, the first half-shaft 90 can transmit power to the output shaft by meshing with the engagement sleeve 31, and the engagement sleeve 31 and the connecting sleeve 32 can mesh, respectively. This meshing transmission method ensures high transmission efficiency and smooth and reliable transmission between the electric assembly 100 and the vehicle.

[0071] The connecting sleeve 32 can selectively couple and separate with the second coupling tooth portion 312 of the engaging sleeve 31. When the connecting sleeve 32 and the second coupling tooth portion 312 are in a coupled state, the engaging sleeve 31 can transmit power to the connecting sleeve 32. When the connecting sleeve 32 and the second coupling tooth portion 312 are in a separated state, the connecting sleeve 32 and the engaging sleeve 31 are disconnected from each other. In this way, by controlling the coupling state of the connecting sleeve 32 and the engaging sleeve 31, the transmission state between the connecting sleeve 32 and the engaging sleeve 31 can be conveniently switched. Preferably, the connecting sleeve 32 and the engaging sleeve 31 can be connected by a spline, or the connecting sleeve 32 and the engaging sleeve 31 can be connected by teeth meshing.

[0072] In one embodiment of the present invention, Figure 10 As shown, the end of the connecting sleeve 32 that meshes with the second coupling tooth portion 312 is equipped with multiple gear teeth 321. The multiple gear teeth 321 are arranged at intervals along the axial direction of the connecting sleeve 32, and the second coupling tooth portion 312 is equipped with corresponding meshing teeth. As a result, the connecting sleeve 32 and the meshing sleeve 31 are connected by a tooth meshing method, which is convenient and reliable, and the matching and positioning of the connecting sleeve 32 and the meshing sleeve 31 are relatively accurate.

[0073] In one embodiment of the present invention, Figure 3 As shown, the housing 10 may include a reduction gearbox 11 and a decoupling housing 13. The reduction gearbox 11 and the decoupling housing 13 are detachably connected. The interior of the reduction gearbox 11 defines a reduction gear chamber 103. An axial hole 104 is formed on the reduction gearbox 11 and extends through the reduction gearbox 11. The interior of the decoupling housing 13 defines a decoupling chamber 132. The decoupling housing 13 is provided with a through-hole extending through the decoupling housing 13, and the through-hole is connected to the axial hole 104. Thus, the reduction gearbox 11 and the decoupling housing 13 are detachably connected, facilitating assembly and disassembly of the housing 10. The through-hole formed in the decoupling housing 13 and extending through the decoupling housing 13 facilitates assembly of the first half-shaft 90 between the reduction gearbox 11 and the decoupling housing 13, and assembly of the output shaft between the decoupling housing 13 and an external structure after assembly. For example, the reduction gearbox 11 and the decoupling housing 13 may be connected by bolts.

[0074] In some examples of the present invention, Figure 3 and Figure 5As shown, one end of the decoupling box 13 can be inserted into the shaft hole 104. A perforation passes through the one end of the decoupling box 13. A sealing groove 131 is formed on the outer surface of the one end of the decoupling box 13. The sealing groove 131 extends in an annular shape along the circumference of the perforation. A sealing member is provided in the sealing groove 131, and the sealing member is in sealing contact with the peripheral wall of the shaft hole 104. Therefore, the sealing groove 131 is provided at the one end of the decoupling box 13 that extends into the shaft hole 104, and the sealing member is used to seal the peripheral wall of the shaft hole 104. This ensures that after the reduction gear box 11 and the decoupling box 13 are assembled, a good sealing effect is achieved at the position of the shaft hole 104. The lubricating oil loses less when flowing between the reduction gear chamber 103 and the decoupling chamber 132, thereby ensuring a good lubrication effect and circulation efficiency of the lubricating oil to a certain extent.

[0075] In some examples of the present invention, Figure 5-Figure 9 As shown, the other end of the decoupling box 13 is provided with an oil seal 301, and the oil seal 301 is used to seal the lubricating oil in the decoupling cavity 132. Thus, the structure is simple and the sealing effect is good.

[0076] In some embodiments of the present invention, two decoupling boxes 13 may be provided, and two sets of decoupling mechanisms 30 may be provided accordingly. The two decoupling boxes 13 are respectively provided on either side of the reduction gearbox 11 housing 10 in the axial direction of the first half-shaft 90. Thus, providing two sets of decoupling mechanisms 30 can further improve the decoupling efficiency and reliability between the electric assembly 100 and the entire vehicle.

[0077] In some embodiments of the present invention, Figure 3 As shown, the electric assembly 100 may also include a decoupling motor 70, which is detachably connected to the decoupling box 13. The motor shaft of the decoupling motor 70 is arranged perpendicular to the axial direction of the engagement sleeve 31. The decoupling motor 70 is used to drive the engagement sleeve 31 to move axially along the first semi-shaft 90. Specifically, the decoupling motor 70 includes a cam. A mating groove 313 extending circumferentially along the engagement sleeve 31 is formed on the outer surface of the engagement sleeve 31. The cam is located in the mating groove 313. When the engagement sleeve 31 needs to be moved, the decoupling motor 70 drives the cam to rotate, causing the cam to push against the radial wall of the mating groove 313, thereby causing the engagement sleeve 31 to move axially along the first semi-shaft 90 as a whole, thereby achieving decoupling and closing operations. Using the decoupling motor 70 to drive the decoupling mechanism 30 for decoupling and closing has a simple structure and fast and accurate operation, which is conducive to improving the response speed of the electric assembly 100 to decouple when the vehicle is running.

[0078] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the electric assembly 100 may further include a drive motor 80, and the housing 10 may further include an electric control box 12. The electric control body 60 is disposed within the electric control box 12, and the motor housing of the drive motor 80 is integrally formed with the electric control box 12. Thus, the integral formation of the motor housing of the drive motor 80 and the electric control box 12 reduces the overall size and compactness of the electric assembly 100, while also increasing the overall structural strength of the electric assembly 100 and effectively improving the NVH (noise, vibration, harshness) performance of the electric assembly 100.

[0079] In some embodiments of the present invention, Figure 2 As shown, the reduction gearbox 11 may include a front housing 111 and a rear housing 112. The front housing 111 of the reduction gearbox 11 is integrally formed with the motor housing of the drive motor 80 and the electronic control box 12, and the rear housing 112 of the reduction gearbox 11 is detachably connected to the front housing 111. Thus, by integrally forming the front housing 111 of the reduction gearbox 11 with the motor housing of the drive motor 80 and the electronic control box 12, the overall volume of the electric assembly 100 can be further reduced and the NVH performance of the electric assembly 100 can be improved. The front housing 111 and the rear housing 112 of the reduction gearbox 11 are detachably connected, facilitating assembly of the reduction gear mechanism within the reduction gearbox 11 and facilitates disassembly.

[0080] In some embodiments of the present invention, Figure 2 As shown, the electric control box 12 may include a box cover 121, and the electric assembly 100 may further include an electric control body 60, wherein the box cover 121 is used to enclose the electric control body 60 in the electric control box 12. This makes it easier to install and fix the electric control body 60 in the electric control box 12, and the structure is simple.

[0081] Reference below Figures 1-14 A vehicle according to an embodiment of a second aspect of the present invention will be described.

[0082] like Figures 1-14 As shown, the vehicle according to the embodiment of the present invention includes the electric assembly 100 according to the embodiment of the first aspect of the present invention.

[0083] Other components and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0084] According to the vehicle of the embodiment of the present invention, by setting the electric assembly 100 of the first embodiment mentioned above, an oil guiding structure 40 is set in the box body 10. The oil guiding structure 40 can guide the lubricating oil in the deceleration chamber 103 to the decoupling chamber 132, thereby effectively lubricating the decoupling mechanism 30, making it less likely for the decoupling mechanism 30 to dry burn during operation, and making the operation of the decoupling mechanism 30 more stable and reliable. At the same time, the oil guiding structure 40 is set in the deceleration chamber 103 to guide oil and lubricate the decoupling mechanism 30, making the overall layout of the electric assembly 100 more compact and reducing the manufacturing cost of the electric assembly 100.

[0085] The following will refer to Figures 1-14 A vehicle according to one embodiment of the present invention is described.

[0086] like Figures 1-14 As shown, the vehicle includes two electric assemblies 100 , which are respectively arranged at the front and rear of the vehicle, and the electric assemblies 100 provide power for the vehicle.

[0087] The electric assembly 100 includes a housing 10, a reduction gear mechanism, an electronic control unit 60, a drive motor 80, a decoupling mechanism 30, a decoupling motor 70, a first half-shaft 90, and an output shaft. The housing 10 includes a reduction gearbox 11, a decoupling box 13, and an electronic control box 12. The reduction gear mechanism is fixed to the reduction gearbox 11, the electronic control unit 60 is fixed to the electronic control box 12, and the decoupling mechanism is fixed to the decoupling box 13. The reduction gearbox 11 includes a front housing 111 and a rear housing 112. The electronic control box 12 includes a housing cover 121. The motor housing of the drive motor 80 is integrally formed with the front housing 111 and the electronic control box 12. The housing cover 121 is used to seal the electronic control box 12. The front housing 111 and the rear housing 112 cooperate to form a reduction gear chamber 103. The decoupling motor 70 is detachably connected to the decoupling box 13.

[0088] The reduction mechanism includes a main shaft gear 21, a counter shaft gear 22 and a differential gear 23. The main shaft gear 21 is meshed with the counter shaft gear 22, and the counter shaft gear 22 is meshed with the differential gear 23. The reduction box 11 has an axial hole 104, and the axis of the axial hole 104 is colinear with the axis of the differential gear 23; an oil guide structure 40 and an oil baffle 50 are provided in the reduction chamber 103, and the oil guide structure 40 includes an oil collecting portion 41, an oil guide plate 42, an oil baffle plate 43, a first bearing 44 and an oil guide groove 45. The oil collecting portion 41 has an oil collecting groove with an open top and an oil hole connected to the oil collecting groove. The oil guide plate 42 is arranged in the inner wall of the deceleration chamber 103. One end of the oil guide plate 42 is located at the lower end of the oil hole. The other end of the oil guide plate 42 extends to the oil guide groove 45. The oil guide groove 45 is arranged on the inner side wall of the shaft hole 104. The oil guide groove 45 encloses an oil guide channel and is provided with a first oil outlet 451 and a second oil outlet 452. The oil baffle plate 43 is fixed to the outside of the oil guide plate 42 and is bolted to the inner wall of the deceleration chamber 103. The shaft hole 104 is provided with a receiving groove 101 on the periphery of one end in the deceleration chamber 103. The receiving groove 101 is provided on the periphery of the shaft hole 104. 1 is provided with a fixing groove 102 at the bottom of the groove, the first bearing 44 is fixed in the accommodating groove 101, the oil retaining member 50 is an oil retaining ring 50b, the outer edge of the oil retaining ring 50b is provided with a flange structure 51, the oil retaining ring 50b is fixed in the fixing groove 102 by the flange structure 51 and abuts against the groove bottom and the peripheral edge of the fixing groove 102, the first oil outlet 451 is provided on the side of the oil retaining ring 50b facing the decoupling cavity 132 and is connected to the shaft hole 104, the second oil outlet 452 is provided between the oil retaining ring 50b and the first bearing 44 and is connected to the shaft hole 104, and the inner diameter of the oil guide ring is larger than the inner diameter of the inner ring of the first bearing 44.

[0089] The decoupling box 13 is detachably connected to the front box body 111 of the reduction gearbox 11. A decoupling chamber 132 is defined on the inner side of the decoupling box 13. The decoupling box 13 has a through hole that passes through the decoupling chamber 132. One end of the decoupling box 13 extends into the shaft hole 104 to connect the through hole with the shaft hole 104. A sealing groove 131 is formed on the outer surface of the end of the decoupling box 13 that extends into the shaft hole 104 and extends in an annular shape along the circumference of the through hole. A sealing member is provided in the sealing groove 131. The sealing member seals between the end of the decoupling box 13 that extends into the shaft hole 104 and the peripheral wall of the shaft hole 104. An oil seal 301 is provided at the through hole at the other end of the decoupling box 13.

[0090] The decoupling mechanism 30 includes a meshing sleeve 31 and a connecting sleeve 32. The meshing sleeve 31 includes a first coupling tooth portion 311 and a second coupling tooth portion 312. The first half-shaft 90 has a first end 91 and a second end 91. The first end extends through the shaft hole 104 into the reduction chamber 103 and is connected to the differential gear 23. The second end is splined to the first coupling tooth portion 311. The second coupling tooth portion 312 engages with the connecting sleeve 32 via a gear tooth structure 321. The end of the connecting sleeve 32 that meshes with the meshing sleeve 31 is provided with a plurality of gear tooth structures 321. The plurality of gear tooth structures 321 are spaced apart along the axial direction of the connecting sleeve 32. The second coupling tooth portion 312 is provided with corresponding meshing teeth. A mating groove 313 is formed on the outer surface of the meshing sleeve 31 and extends circumferentially along the meshing sleeve 31. The decoupling motor 70 includes a cam located in the mating groove 313.

[0091] When the vehicle is operating in a low-torque condition, the electric assembly 100 located at the rear of the vehicle does not need to work. At this time, the decoupling motor 70 drives the cam to rotate, and the cam drives the engaging sleeve 31 to move axially along the first half-shaft 90, so that the engaging sleeve 31 is separated from the connecting sleeve 32, thereby disconnecting the transmission between the electric assembly 100 and the entire vehicle and completing the decoupling operation; when the electric assembly 100 needs to provide power to the entire vehicle, the decoupling motor 70 drives the cam to rotate, so that the cam drives the engaging sleeve 31 to move axially along the first half-shaft 90, so that the engaging sleeve 31 and the connecting sleeve 32 are recoupled, so that the electric assembly 100 provides power to the entire vehicle.

[0092] When the electric assembly 100 is running, the oil collecting portion 41 collects the lubricating oil splashed in the deceleration chamber 103, and the lubricating oil flows along the oil guide plate 42 to the shaft hole 104. A part of the lubricating oil lubricates the first bearing 44 and a small amount of lubricating oil flows into the decoupling chamber 132 through the first bearing 44. The other part of the lubricating oil flows from the oil retaining ring 50b toward one side of the decoupling chamber 132 into the decoupling chamber 132. The oil retaining ring 50b blocks the lubricating oil flowing into the decoupling chamber 132, so that the decoupling chamber 132 is not blocked. 2 can accumulate a certain amount of lubricating oil at the bottom; after the electric assembly 100 stops running, the lubricating oil accumulated in the decoupling chamber 132 can continue to lubricate the decoupling mechanism 30, thereby preventing the decoupling mechanism 30 from dry burning during operation, making the operation of the decoupling mechanism 30 more stable and reliable. At the same time, the oil guide structure 40 is arranged in the deceleration chamber 103 to guide oil and lubricate the decoupling mechanism 30, making the overall layout of the electric assembly 100 more compact and reducing the manufacturing cost of the electric assembly 100.

[0093] In the description of the present invention, 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 to 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 invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0094] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0095] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0096] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0097] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An electric assembly, characterized in that: include: A housing having a deceleration chamber and a decoupling chamber communicating with the deceleration chamber; A deceleration mechanism, the deceleration mechanism is arranged in the deceleration chamber, and the deceleration mechanism has an output end; a first half-shaft, the first half-shaft being disposed in the decoupling cavity and having a first end and a second end, the first end being connected to the output end, and the second end being adapted to be connected to the output shaft; a decoupling mechanism, the decoupling mechanism being arranged in the decoupling cavity and connected between the second end and the output shaft, the decoupling mechanism being used to achieve coupling and decoupling between the first half-shaft and the output shaft, and an oil guide structure, the oil guide structure being disposed in the deceleration chamber and being adapted to guide the lubricating oil in the deceleration chamber to the decoupling chamber to lubricate the decoupling mechanism, the housing having an axial hole, the deceleration chamber and the decoupling chamber being connected through the axial hole, the first end extending through the axial hole into the deceleration chamber and being connected to the output end of the deceleration mechanism; a first bearing, the first bearing being arranged at the position of the shaft hole, and the first end being supported on the first bearing; The oil guide structure includes an oil guide channel, the inlet of the oil guide channel is connected to the deceleration chamber, and the oil guide channel has a first oil outlet opened on the inner side wall of the shaft hole, and the first oil outlet is located on the side of the first bearing facing the decoupling chamber; An oil baffle is provided in the shaft hole, the oil baffle is located between the first oil outlet and the first bearing, at least part of the oil baffle is located on the lower side of the first half-shaft and is spaced a preset distance from the first half-shaft, and the oil baffle is suitable for preventing the lubricating oil in the decoupling chamber from flowing back to the deceleration chamber.

2. The electric assembly according to claim 1, characterized in that: The oil guide channel has a second oil outlet opened on the inner side wall of the shaft hole, and the second oil outlet is located between the oil blocking member and the first bearing.

3. The electric assembly according to claim 1, characterized in that: The oil baffle is annular and is arranged around the first half shaft.

4. The electric assembly according to claim 1, characterized in that: The oil guide structure includes an oil guide groove, which is opened on the inner side wall of the shaft hole and extends along the axial direction of the shaft hole. The oil guide groove forms the oil guide channel.

5. The electric assembly according to claim 4, characterized in that: The oil guide groove is formed on a side wall surface of the shaft hole facing the intermediate shaft of the speed reduction mechanism.

6. The electric assembly according to claim 1, characterized in that: An accommodating groove is provided on the inner wall surface of one end of the shaft hole facing the deceleration chamber. The accommodating groove extends in a ring shape along the circumference of the shaft hole. The first bearing is arranged in the accommodating groove. The radial outer end of the oil baffle extends into the accommodating groove and abuts against a side wall surface of the accommodating groove facing away from the deceleration chamber.

7. The electric assembly according to claim 1, characterized in that: The oil guide structure comprises: An oil collecting portion, the oil collecting portion being arranged in the deceleration chamber, the oil collecting portion comprising an oil collecting groove with an open top and an oil hole communicating with the oil collecting groove; An oil passage, one end of which is connected to the oil hole and the other end of which extends to the oil guide channel, and the oil hole is connected to the oil guide channel through the oil passage.

8. The electric assembly according to claim 7, characterized in that: The oil guide structure also includes: an oil guide plate, which is arranged on the inner wall of the deceleration chamber, one end of the oil guide plate is located below the oil hole, and the other end of the oil guide plate extends downwardly toward the direction of the shaft hole, and the oil channel is formed on the upper surface of the oil guide plate.

9. The electric assembly according to any one of claims 1 to 8, characterized in that: The decoupling mechanism includes an engagement sleeve extending along the axis of the first half shaft, the engagement sleeve having a first coupling tooth portion and a second coupling tooth portion, the second end can be selectively coupled to the first coupling tooth portion, and the second coupling tooth portion can be selectively coupled to and decoupled from the output shaft.

10. The electric assembly according to any one of claims 1 to 8, characterized in that: The housing includes: a reduction gear box and a decoupling box, the reduction gear box and the decoupling box are detachably connected, the inner side of the reduction gear box defines the reduction gear chamber, the axial hole is formed on the reduction gear box and passes through the reduction gear box, the inner side of the decoupling box defines the decoupling chamber, a through hole is formed on the decoupling box and passes through the decoupling box, and the through hole is connected to the axial hole.

11. The electric assembly according to claim 10, characterized in that: One end of the decoupling box extends into the axial hole, the through hole passes through the one end of the decoupling box, and a sealing groove is formed on the outer surface of the one end of the decoupling box. The sealing groove extends in a ring shape along the circumference of the through hole. A sealing member is provided in the sealing groove, and the sealing member is in sealing contact with the peripheral wall of the axial hole.

12. A vehicle, characterized in that: Comprising an electric assembly according to any one of claims 1-11.

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