Gearbox oil retaining structure and vehicle

Abstract

The application relates to an oil blocking structure of a gearbox and a vehicle, the oil blocking structure of the gearbox comprising: an oil blocking cover and a first component, the oil blocking cover being fixed on a housing, the oil blocking cover and the housing jointly forming a containing cavity for containing a differential gear in the gearbox; at least part of the oil blocking cover is arranged below the differential gear in the Z direction of the vehicle, and an oil leakage hole is formed in the oil blocking cover; the first component is arranged at the oil leakage hole, and the first component is configured to allow oil in the containing cavity to flow out of the containing cavity through the first component and to prevent oil outside the containing cavity from flowing into the containing cavity through the first component. The oil blocking cover is arranged below the differential gear, the oil in the gearbox can be blocked, the oil entering the containing cavity can be discharged through the first component, the differential gear is prevented from directly contacting the oil, the rotation of the differential gear is not disturbed by the oil, and the differential gear has higher working efficiency.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to an oil baffle structure for a transmission and a vehicle. Background Technology

[0002] In the prior art, because there is oil in the transmission, the differential gears in the transmission may be partially submerged in the oil during the operation of the transmission. As a result, when the differential gears rotate, the oil may hinder the rotation of the differential gears, resulting in energy waste during the rotation of the differential gears. Summary of the Invention

[0003] The purpose of this invention is to provide an oil baffle structure for a transmission and a vehicle thereof, in order to solve the technical problems existing in related technologies.

[0004] To achieve the above objectives, according to a first aspect of the present invention, a transmission oil baffle structure is provided, comprising:

[0005] An oil baffle is fixed to the housing, and the oil baffle and the housing together form a receiving cavity, which is used to accommodate the differential gear located in the gearbox.

[0006] Along the Z-direction of the vehicle, at least part of the oil baffle is disposed below the differential gear, and the oil baffle has an oil leakage hole formed thereon;

[0007] A first component is disposed at the oil leakage hole. The first component is configured to allow oil in the receiving cavity to flow out of the receiving cavity through the first component and to prevent oil outside the receiving cavity from flowing into the receiving cavity through the first component.

[0008] Optionally, the oil baffle is configured as an arc-shaped structure recessed in the direction away from the differential gear.

[0009] Optionally, the oil baffle includes a first arc-shaped baffle and a second arc-shaped baffle;

[0010] One end of the first arc-shaped baffle is used to connect with the differential housing or the gearbox housing, and the other end is connected with the second arc-shaped baffle;

[0011] The second arc-shaped baffle extends radially along the differential gear, and the cross-section of the second arc-shaped baffle and the cross-section of the first arc-shaped baffle form an L-shape;

[0012] The oil leakage hole is formed on the first arc-shaped baffle.

[0013] Optionally, a first flange is formed on the first arc-shaped baffle, and a plurality of mounting holes are formed on the first flange;

[0014] The mounting holes are spaced circumferentially along the first flange and are used for fasteners connected to the differential housing to pass through.

[0015] Optionally, the end of the second arc-shaped baffle away from the first arc-shaped baffle has a second flange;

[0016] The second arc-shaped baffle also has multiple reinforcing ribs, which are spaced apart along the circumference of the second arc-shaped baffle and connected to the second flange.

[0017] Optionally, along the Z-direction of the vehicle, the oil baffle has a confluence point, which is the point where the oil entering the receiving cavity flows along the inner walls of both ends of the oil baffle and converges, and the oil leakage hole is located at the confluence point of the oil baffle.

[0018] Optionally, the first component is located on the side of the oil baffle opposite to the differential gear.

[0019] Optionally, the first component is configured as a check valve, a relief valve, or a solenoid valve.

[0020] Optionally, the first component includes a first magnet, a guide rod, and a second magnet;

[0021] The first magnet is disposed around the oil leak hole and embedded in the oil baffle.

[0022] One end of the guide rod is fixed to the first magnet or the oil baffle, and the other end passes through the second magnet;

[0023] The second magnet is magnetically attracted to the first magnet, thus sealing the oil leak hole.

[0024] Optionally, the housing includes a gearbox housing or a differential housing.

[0025] Optionally, the housing includes a gearbox housing and a differential housing;

[0026] The gearbox housing and the differential housing are integrally formed.

[0027] Optionally, a flange is formed on the housing;

[0028] Along the Z-direction of the vehicle, the flange is located below the oil baffle.

[0029] An oil inlet is formed on the flange, which communicates with the oil passage of the housing, and the oil inlet supplies oil to flow into the oil passage.

[0030] Optionally, along the Z-direction of the vehicle, the height difference between the top of the flange and the oil inlet is 3mm-5mm.

[0031] According to a second aspect of the present invention, a vehicle is provided, including an oil baffle structure for a transmission as described above.

[0032] Through the above technical solution, the present invention provides an oil baffle inside the gearbox. Since the oil baffle is at least partially located below the differential gear, and the differential gear is arranged in a cavity formed by the oil baffle and the housing, the oil baffle can prevent the oil in the gearbox from directly contacting the differential gear, thereby ensuring that the differential gear is not interfered with by the oil during rotation and avoiding the oil causing resistance to the rotation of the differential gear.

[0033] Furthermore, even if the transmission gears inside the transmission splash oil into the cavity formed by the oil baffle and the housing during operation, the oil splashed into the cavity can flow out through the oil baffle via the first component because the transmission's oil baffle structure also includes an oil leakage hole and a first component formed at the oil leakage hole. Moreover, oil outside the cavity cannot enter the cavity through the oil leakage hole, thereby reducing the amount of oil in the cavity and preventing the oil from interfering with or intervening in the differential gears during rotation, further improving the working efficiency of the differential.

[0034] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0036] Figure 1 This is a perspective view of the oil baffle structure of a gearbox provided in an exemplary embodiment of the present invention;

[0037] Figure 2 This is a cross-sectional view of a first component provided in an exemplary embodiment of the present invention;

[0038] Figure 3 This is a partial perspective view of a gearbox provided in an exemplary embodiment of the present invention;

[0039] Figure 4 This is a partial perspective view of a gearbox provided in an exemplary embodiment of the present invention from another angle;

[0040] Figure 5 yes Figure 4 An enlarged view of part A.

[0041] Explanation of reference numerals in the attached figures

[0042] 1-Oil baffle structure of the gearbox; 10-Oil baffle cover; 11-Receiving cavity; 12-First arc-shaped baffle; 121-First flange; 1210-Mounting hole; 122-Oil leakage hole; 13-Second arc-shaped baffle; 130-Second flange; 131-Reinforcing rib; 20-First component; 21-Mounting seat; 22-Elastic element; 23-Movable plug; 30-Differential; 31-Differential housing; 40-Gearbox; 41-Gearbox housing; 42-Flange; 420-Oil inlet; 100-Gearbox. Detailed Implementation

[0043] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] In this invention, unless otherwise stated, directional terms such as "upper" and "lower" are generally defined based on the normal driving state of the vehicle. Specifically, the direction from the Z-axis of the vehicle to the roof is considered upper, and the direction from the Z-axis of the vehicle to the chassis is considered lower. "Inner" and "outer" refer to the inner and outer contours of the corresponding structures or components.

[0045] refer to Figures 1-5 As shown, according to a first aspect of the present invention, an oil baffle structure for a transmission is provided, comprising: an oil baffle cover 10 and a first component 20, the oil baffle cover 10 being fixed to a housing, the oil baffle cover 10 and the housing together forming a receiving cavity 11, the receiving cavity 11 being used to receive a differential gear located within the transmission 100, and at least a portion of the oil baffle cover 10 being disposed below the differential gear along the Z-direction of the vehicle; an oil leakage hole 122 is formed on the oil baffle cover 10, the first component 20 being disposed at the oil leakage hole 122, the first component 20 being configured to allow oil in the receiving cavity 11 to flow out of the receiving cavity 11 through the first component 20, and to prevent oil outside the receiving cavity 11 from flowing into the receiving cavity 11 through the first component 20.

[0046] Through the above technical solution, the present invention provides an oil baffle 10 in the gearbox 100. Since the oil baffle 10 is at least partially located below the differential gear, and the differential gear is arranged in the cavity 11 formed by the oil baffle 10 and the housing, the oil baffle 10 can prevent the oil in the gearbox from directly contacting the differential gear, thereby ensuring that the differential gear is not interfered with by the oil during rotation and avoiding the oil causing resistance to the rotation of the differential gear.

[0047] Furthermore, even if the transmission gears in the transmission 100 splash oil into the receiving cavity 11 formed by the oil baffle 10 and the housing during operation, the oil splashed into the receiving cavity 11 can flow out of the receiving cavity 11 through the oil baffle 122 via the first component 20 formed at the oil baffle 122, since the transmission oil baffle structure 1 also includes an oil leakage hole 122 and a first component 20 formed at the oil leakage hole 122. Moreover, the oil outside the receiving cavity 11 cannot enter the receiving cavity 11 through the oil leakage hole 122, thereby reducing the amount of oil in the receiving cavity 11, avoiding interference or interference of the oil on the differential gears during rotation, and further improving the working efficiency of the differential 30.

[0048] In one embodiment of the present invention, such as Figure 1 As shown, optionally, the oil baffle 10 can be configured as an arc-shaped structure recessed in the direction away from the differential gear. In this invention, the arc-shaped structure can be a superior arc or a inferior arc, and this invention does not limit the specific shape of the arc-shaped structure.

[0049] In another embodiment of the present invention, the oil baffle 10 may include a first arc-shaped baffle 12 and a second arc-shaped baffle 13. One end of the first arc-shaped baffle 12 is connected to the differential housing 31 or the gearbox housing 41, and the other end is connected to the second arc-shaped baffle 13. The second arc-shaped baffle 13 extends radially along the differential gear, and the cross section of the second arc-shaped baffle 13 and the cross section of the first arc-shaped baffle 12 form an L-shape. An oil leakage hole 122 is formed on the first arc-shaped baffle 12. Since the second arc-shaped baffle 13 extends radially along the differential gear, and the cross-section of the second arc-shaped baffle 13 and the cross-section of the first arc-shaped baffle 12 form an L-shape, after the first arc-shaped baffle 12 of the oil baffle cover 10 is connected to the differential housing 31 or the gearbox housing 41, the first arc-shaped baffle 12, the second arc-shaped baffle 13 and the differential housing 31, or the first arc-shaped baffle 12, the second arc-shaped baffle 13 and the gearbox housing 41 together form an upward-opening receiving cavity 11, thereby achieving the isolation of the differential gear from the oil.

[0050] Furthermore, since both the first arc-shaped baffle 12 and the second arc-shaped baffle 13 are constructed as arc surfaces, the receiving cavity 11 formed by the first arc-shaped baffle 12 and the second arc-shaped baffle 13 fits the outer contour of the differential gear better. Therefore, the space occupied by the oil baffle structure 1 of the gearbox can be reduced, making it easier to install and set the oil baffle structure 1 of the gearbox in the gearbox 100.

[0051] In other embodiments of the present invention, the oil baffle 10 can be formed into any shape that meets the oil baffle requirements, and the present invention does not limit the specific formation of the oil baffle.

[0052] To facilitate the installation of the oil baffle structure 1 of the transmission, in one embodiment of the present invention, optionally, as shown... Figure 1 As shown, a first flange 121 is formed on the first arc-shaped baffle 12, and a plurality of mounting holes 1210 are formed on the first flange 121. The mounting holes 1210 are spaced apart circumferentially along the first flange 121 and are used for fasteners connected to the differential housing 31 to pass through. In one embodiment of the present invention, the first flange 121 may be formed on the outer side of the first arc-shaped baffle 12. This makes it easier to install and remove the oil baffle structure 1 of the gearbox, and the mounting holes formed on the outer side of the oil baffle structure 1 of the gearbox are less likely to interfere with other structures in the gearbox, such as differential gears.

[0053] Alternatively, in other embodiments provided by the present invention, the first flange 121 may be formed on the inner side of the first arc-shaped baffle 12, that is, the first flange 121 is formed inside the receiving cavity 11. In this way, the space occupied by the first flange 121 can be reduced, and interference with other surrounding structures can be avoided when the first flange 121 is set, making the oil baffle structure 1 of the gearbox more compact.

[0054] In one embodiment of the present invention, the fastener can be a bolt, and a threaded hole can be formed in the differential housing 31. The bolt passes sequentially through the mounting hole 1210 and the threaded hole to fix the oil baffle structure 1 of the gearbox. Of course, in other embodiments of the present invention, the fastener can be any structure that meets the requirements, and the present invention does not limit it.

[0055] Alternatively, the oil baffle structure 1 of the gearbox provided by the present invention can also be fixed by any means such as welding or snap-fitting, and the present invention does not limit this.

[0056] To further improve the oil-blocking effect of the transmission's oil-blocking structure 1, a sealing gasket can be provided between the first flange 121 and the differential housing 31 or the transmission housing 41. This prevents oil from entering the receiving cavity 11 through the gap between the first flange 121 and the differential housing 31 or the gap between the first flange 121 and the transmission housing 41, thus affecting the rotation of the differential gears. Here, the sealing gasket can be a rubber gasket.

[0057] To improve the strength of the oil baffle structure 1 of the aforementioned gearbox, in one embodiment of the present invention, optionally, as shown... Figure 1As shown, a second flange 130 is formed at the end of the second arc-shaped baffle 13 away from the first arc-shaped baffle 12. Multiple reinforcing ribs 131 are also formed on the second arc-shaped baffle 13, spaced apart circumferentially along the second arc-shaped baffle 13 and connected to the second flange 130. By providing the second flange 130 and multiple reinforcing ribs 131 extending circumferentially along the second arc-shaped baffle 13, the overall strength of the second arc-shaped baffle 13 can be effectively improved, giving it stronger compressive strength and enabling it to withstand the pressure from the oil inside or outside the receiving cavity 11. This prevents the second arc-shaped baffle 13 from deforming or loosening under oil pressure, improving the stability of the transmission's oil-blocking structure 1. Furthermore, the reinforcing ribs 131 can reduce the vibration of the transmission's oil-blocking structure 1, preventing NVH (noise, vibration, and harshness) problems in the transmission 100, thereby improving the stability of the vehicle during operation.

[0058] Optionally, such as Figure 1 As shown, along the Z-direction of the vehicle, the oil drain hole 122 can be located at the lowest point of the oil baffle 10. Since the oil drain hole 122 is located at the lowest point of the oil baffle 10, the oil entering the receiving cavity 11 flows to the oil drain hole 122 under the action of gravity, thereby facilitating the discharge of the oil in the receiving cavity 11 from the oil drain hole 122 to the outside of the receiving cavity 11 through the first component 20.

[0059] In the embodiment where the oil baffle 10 includes a first arc-shaped baffle 12 and a second arc-shaped baffle 13, the oil baffle 10 has a converging point along the Z-direction of the vehicle. The converging point is the junction point where the oil entering the receiving cavity 11 flows along the inner walls of both ends of the oil baffle 10. The oil drain hole 122 is located at the converging point of the first arc-shaped baffle 12. The first arc-shaped baffle 12 is constructed in an arc shape, so that the oil entering the receiving cavity 11 will flow towards the bottom end of the first arc-shaped baffle 12 under the action of gravity, that is, towards the aforementioned converging point. The oil drain hole 122 is located at this converging point, thereby facilitating the discharge of oil through the first component 20 from the oil drain hole 122 to the outside of the receiving cavity 11.

[0060] Here, the aforementioned convergence point can also be understood as: the intersection of the tangents of the two endpoints of the oil baffle 10, and the point where it intersects with the oil baffle 10 after extending upward along the Z direction of the vehicle from the intersection point.

[0061] In one embodiment of the present invention, the first component 20 is mounted on the oil drain hole 122 via a threaded structure. In other embodiments, the first component 20 can also be mounted on the oil drain hole 122 via a magnet or a snap-fit ​​structure. When the first component 20 is mounted on the oil drain hole 122 via a magnet, the oil baffle 10 is made of a material that can be attracted by a magnet, such as iron. When the first component 20 is mounted on the oil drain hole 122 via a snap-fit ​​structure, the snap-fit ​​structure includes a snap block on the first component 20 and a snap groove on the oil baffle 10, with the snap block snapping into the snap groove.

[0062] In one embodiment of the present invention, the first component 20 can be configured as a one-way valve; in other embodiments, the first component 20 can also be configured as a relief valve or a solenoid valve. When the first component 20 is a one-way valve, the opening pressure of the one-way valve is determined according to the distance between the differential gear and the oil baffle 10, i.e., Y = F(x), where x is the distance between the differential gear and the oil baffle 10, and Y is the opening pressure of the one-way valve. For example, when the distance between the differential gear and the oil baffle 10 is 1 cm, the opening pressure of the one-way valve is set to 0.03 MPa.

[0063] When oil enters the receiving cavity 11, it can be discharged to the outside of the receiving cavity 11 through the one-way valve, thereby avoiding direct contact between the oil and the differential gears, ensuring that the differential gears are not interfered with by the oil during rotation, and avoiding the oil causing resistance to the rotation of the differential gears.

[0064] In one embodiment of the present invention, the first component 20 may include a first magnet, a guide rod, and a second magnet. The first magnet is disposed around the oil leak hole 122 and embedded in the oil baffle 10. One end of the guide rod is fixed to the first magnet or the oil baffle 10, and the other end passes through the second magnet. The second magnet is magnetically attracted to the first magnet, thus sealing the oil leak hole 122. In other embodiments, a sealing gasket is also provided between the second magnet and the oil leak hole 122. When the weight of the oil in the receiving cavity 11 exceeds the magnetic force between the first magnet and the second magnet, the second magnet moves downward along the guide rod under the action of the oil's gravity, thereby allowing the oil to flow into the gearbox through the oil leak hole 122.

[0065] In other embodiments of the present invention, both the first magnet and the second magnet can be electromagnets. By adjusting the direction of the current flow in the coil wound around the first magnet or the second magnet, the magnetism of the first magnet or the second magnet can be changed, causing the first magnet and the second magnet to attract or repel each other, thereby opening and closing the oil drain hole 122. When the oil level in the receiving cavity 11 exceeds the preset oil level, the magnetism of the first magnet or the second magnet is changed, causing the first magnet and the second magnet to repel each other. At this time, under the action of magnetic force, the second magnet is driven to slide along the guide rod away from the oil drain hole 122, thereby opening the oil drain hole 122, allowing the oil in the receiving cavity 11 to flow out through the oil drain hole 122. Subsequently, the magnetism of the second magnet is changed, causing the first magnet and the second magnet to attract each other, thereby driving the second magnet to slide along the guide rod towards the oil drain hole 122, thereby closing the oil drain hole 122, thus preventing external oil from entering the receiving cavity 11 through the oil drain hole 122 and interfering with the rotation of the differential gear.

[0066] Optionally, such as Figure 2 As shown, in another embodiment of the present invention, the first component 20 may be located on the side of the oil baffle 10 away from the differential gear. The first component 20 may include a mounting base 21, an elastic element 22, and a movable plug 23. The mounting base 21 is fixed on the oil baffle 10. One end of the elastic element 22 is fixedly connected to the mounting base 21, and the other end of the elastic element 22 is fixedly connected to the movable plug 23. The movable plug 23 can seal the oil leakage hole 122. Thus, when the transmission gears agitate and cause oil to splash into the receiving cavity 11, as the amount of oil increases, the oil in the receiving cavity 11 flows towards the collection point of the oil baffle 10 under its own gravity, and applies pressure to the movable plug 23 sealing the oil leak hole 122. This causes the movable plug 23 to move downward and push the elastic member 22 to deform. The elastic member is compressed away from the oil leak hole 122, and the movable plug 23 disengages from the oil leak hole 122, exposing the oil leak hole 122. At this time, the oil in the receiving cavity 11 can flow out to the transmission through the oil leak hole 122. The oil baffle structure 1 is located outside the gearbox. As the oil in the receiving cavity 11 decreases, the pressure exerted by the oil on the movable plug 23 decreases. The elastic element 22 recovers its deformation under its own elastic force and drives the movable plug 23 to re-seal the oil leakage hole 122. At this time, the oil in the receiving cavity 11 can no longer flow out to the outside of the gearbox oil baffle structure 1 through the oil leakage hole 122, and the oil located outside the gearbox oil baffle structure 1 can no longer enter the receiving cavity 11 through the oil leakage hole 122. This achieves control over the amount of oil in the receiving cavity 11 to avoid the oil interfering with the rotation of the differential gear.

[0067] In one embodiment provided by the present invention, such as Figure 2As shown, the elastic element 22 can be a spring post.

[0068] In summary, the first component 20 can be any structure that meets the requirements, and the present invention does not limit it.

[0069] In one embodiment of the invention, the housing includes a gearbox housing 41 and a differential housing 31; and the gearbox housing 41 and the differential housing 31 may be integrally formed. In other embodiments, the housing may be a separate gearbox housing 41 or a differential housing 31. The invention is not limited in this respect.

[0070] Optionally, such as Figures 3-4 As shown, the housing has a flange 42 along the Z-direction of the vehicle. The flange 42 is located below the oil baffle 10 to prevent excessive oil from entering the receiving cavity 11 from the top of the oil baffle 10 when there is too much oil in the transmission. An oil inlet 420 is formed on the flange 42, which communicates with the oil passage of the housing. The oil inlet 420 is used to allow oil to flow into the oil passage of the transmission. By providing an oil inlet 420 on the flange 42 of the housing, when there is too much oil flowing out of the receiving cavity 11 or below the oil baffle 10, the oil can flow back to the oil passage of the transmission 100 through the oil inlet 420, realizing the circulation of oil within the transmission 100. Furthermore, because the transmission oil baffle structure 1 is provided within the transmission 100, the outer wall of the transmission oil baffle structure 1 can apply a certain pressure to the oil located on the outer periphery of the transmission oil baffle structure 1, making it easier for the oil located between the transmission oil baffle structure 1 and the housing to flow back to the oil passage from the oil inlet 420.

[0071] Optionally, along the Z-direction of the vehicle, the height difference between the top of the flange 42 and the oil inlet 420 is 3mm-5mm. The height of the oil inlet 420 is lower than that of the flange 42, ensuring that oil outside the oil baffle 10 can flow into the oil passage through the oil inlet 420. Furthermore, since the height of the oil inlet 420 is 3mm-5mm lower than the top of the flange 42, it ensures that the oil has a certain pressure when flowing into the oil passage, without causing the pressure to be too high and resulting in excessively fast oil flow into the oil passage.

[0072] According to a second aspect of the present invention, a vehicle is provided, including the oil baffle structure 1 of the transmission as described above. This vehicle possesses all the beneficial effects of the oil baffle structure 1 of the transmission described above, which will not be elaborated upon here.

[0073] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0074] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0075] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. An oil baffle structure for a transmission, characterized in that, include: An oil baffle (10) is fixed on the housing. The oil baffle (10) and the housing together form a receiving cavity (11). The receiving cavity (11) is used to receive the differential gear located in the gearbox (100). The oil baffle (10) can prevent the oil in the gearbox (100) from directly contacting the differential gear. Along the Z-direction of the vehicle, at least part of the oil baffle (10) is disposed below the differential gear, and an oil leakage hole (122) is formed on the oil baffle (10). Along the Z-direction of the vehicle, the oil leakage hole (122) is located at the lowest point of the oil baffle (10). A first component (20) is disposed at the oil leakage hole (122). The first component (20) is configured to allow oil in the receiving cavity (11) to flow out of the receiving cavity (11) through the first component (20) and to prevent oil outside the receiving cavity (11) from flowing into the receiving cavity (11) through the first component (20). The first component (20) is located on the side of the oil baffle (10) away from the differential gear. The first component (20) includes a mounting base (21), an elastic element (22), and a movable plug (23). The mounting base (21) is fixed on the oil baffle (10). One end of the elastic element (22) is fixedly connected to the mounting base (21), and the other end of the elastic element (22) is fixedly connected to the movable plug (23). The movable plug (23) can seal the oil leakage hole (122).

2. The oil baffle structure of the gearbox according to claim 1, characterized in that, The oil baffle (10) is configured as an arc-shaped structure recessed in the direction away from the differential gear.

3. The oil baffle structure of the gearbox according to claim 1 or 2, characterized in that, The oil baffle (10) includes a first arc-shaped baffle (12) and a second arc-shaped baffle (13); One end of the first arc-shaped baffle (12) is used to connect with the differential housing (31) or the gearbox housing (41), and the other end is connected with the second arc-shaped baffle (13); The second arc-shaped baffle (13) extends radially along the differential gear, and the cross section of the second arc-shaped baffle (13) and the cross section of the first arc-shaped baffle (12) form an L-shape; The oil leakage hole (122) is formed on the first arc-shaped baffle (12).

4. The oil baffle structure of the gearbox according to claim 3, characterized in that, The first arc-shaped baffle (12) has a first flange (121) formed on it, and the first flange (121) has a plurality of mounting holes (1210). The mounting holes (1210) are spaced circumferentially along the first flange (121), and the mounting holes (1210) are for fasteners connected to the differential housing (31) to pass through.

5. The oil baffle structure of the gearbox according to claim 3, characterized in that, The second arc-shaped baffle (13) has a second flange (130) at the end away from the first arc-shaped baffle (12); Multiple reinforcing ribs (131) are also formed on the second arc-shaped baffle (13). The reinforcing ribs (131) are arranged at intervals along the circumference of the second arc-shaped baffle (13) and are connected to the second flange (130).

6. The oil baffle structure of the gearbox according to claim 1, characterized in that, Along the Z-direction of the vehicle, the oil baffle (10) has a confluence point, which is the point where the oil that enters the receiving cavity (11) flows along the inner walls of both ends of the oil baffle (10) and the oil leakage hole (122) is located at the confluence point of the oil baffle (10).

7. The oil baffle structure of the gearbox according to claim 1, characterized in that, The housing includes a gearbox housing (41) or a differential housing (31).

8. The oil baffle structure of the gearbox according to claim 1, characterized in that, The housing includes a gearbox housing (41) and a differential housing (31). The gearbox housing (41) and the differential housing (31) are integrally formed.

9. The oil baffle structure of the gearbox according to claim 1, characterized in that, A flange (42) is formed on the shell. Along the Z-direction of the vehicle, the flange (42) is located below the oil baffle (10); An oil inlet (420) is formed on the flange (42) and communicates with the oil passage of the housing. The oil inlet (420) supplies oil to flow into the oil passage.

10. The oil baffle structure of the gearbox according to claim 9, characterized in that, Along the Z-direction of the vehicle, the height difference between the top of the flange (42) and the oil inlet (420) is 3mm-5mm.

11. A vehicle, characterized in that, The transmission includes the oil baffle structure as described in any one of claims 1-10.

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