Sealing structure of electric drive axle shell and vehicle

Abstract

The utility model discloses a sealing structure of an electric drive axle shell and a vehicle, and the sealing structure of the electric drive axle shell comprises a first shell, a second shell and a sealing cover, the sealing ring is mounted in the sealing groove; and the second shell is in butt joint with the first shell, the second shell is provided with a sealing surface matched with the sealing ring, the second shell is further provided with a guide piece, the first shell is provided with a guide groove matched with the guide piece, and the guide groove is arranged close to the sealing groove. According to the utility model, the guide piece is arranged on the second shell, and the sealing groove and the guide groove are formed in the first shell, so that when the first shell and the second shell are assembled, the guide piece extends into the guide groove to guide and position the installation of the second shell, and the assembly precision is improved; the sealing groove is formed near the guide groove, when the guide piece stretches into the guide groove, the sealing ring is blocked, the sealing ring is prevented from being disengaged from the sealing groove, and the sealing performance of the electric drive axle shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a sealing structure of an electric drive axle housing and a vehicle. Background Art

[0002] The sealing structure of the electric drive axle housing is generally sealed with a square sealing ring, and the corresponding upper and lower housings are also provided with a sealing groove of a square structure. Through the extrusion of the upper and lower housings, the rubber sealing ring is squeezed and deformed to fill the sealing groove space to achieve the purpose of sealing. However, due to the single structure of the sealing ring, there are corresponding tolerances in the size of the sealing strip and the sealing groove. After assembly, the sealing strip cannot completely fill the sealing groove cavity. If it is not assembled in place, the sealing ring will fall out of the sealing groove during the assembly process, causing the sealing ring to fail, and then the water will penetrate into the housing of the electric drive axle through the sealing groove after the vehicle wades, and the motor inside the housing will be damaged by water erosion, and the vehicle cannot drive. In order to enhance the sealing performance, a circle of sealant is added to the outer end of the sealing ring in the prior art. Although this solution enhances the sealing performance to a certain extent, it will increase the external dimensions and weight of the electric drive axle housing, and at the same time increase the glue coating tooling, which increases the assembly cost and process of the electric drive axle. Utility Model Content

[0003] The utility model aims to at least solve the technical problems existing in the prior art that the sealing ring has a single structure, the sealing strip and the sealing groove have corresponding tolerances in size, the sealing strip cannot completely fill the sealing groove cavity after assembly, and if the assembly is not in place, the sealing ring will fall out of the sealing groove during the assembly process, causing the sealing ring to fail.

[0004] To this end, one object of the utility model is to provide a sealing structure of an electric drive axle housing, the sealing structure of the electric drive axle housing comprising:

[0005] A first shell having a sealing groove formed on one side thereof;

[0006] A sealing ring, installed in the sealing groove;

[0007] The second shell is docked with the first shell, and the second shell has a sealing surface that cooperates with the sealing ring. The second shell is also provided with a guide piece, and the first shell is provided with a guide groove that cooperates with the guide piece, and the guide groove is arranged close to the sealing groove.

[0008] In some embodiments, the ring wall of the sealing ring is provided with multiple groups of protrusion structures connected to the side wall of the sealing groove, and the multiple groups of protrusion structures are arranged at intervals along the circumference of the sealing ring, and each group of the protrusion structures includes a first protrusion arranged on the inner side of the sealing ring and a second protrusion arranged on the outer side of the sealing ring.

[0009] In some embodiments, the number of protrusions in each group of the protrusion structures is the same, and in two adjacent groups of the protrusion structures, the number of the first protrusions in one group of the protrusion structures is the same as the number of the second protrusions in the other group of the protrusion structures.

[0010] In some embodiments, groove structures are provided on the upper and lower sides of the sealing ring to form two flanges on the upper and lower sides of the sealing ring respectively, and the flanges on the upper and lower sides of the sealing ring respectively cooperate with the sealing surface and the bottom of the sealing groove.

[0011] In some embodiments, the sealing surface is a sealing plane.

[0012] In some embodiments, the sealing surface has a sealing protrusion, the width of the sealing protrusion is smaller than the width of the groove of the groove structure, the height of the sealing protrusion is one third of the depth of the sealing groove, and the two flanges on the upper side of the sealing ring are respectively close to the sealing protrusion.

[0013] In some embodiments, the first shell has an electrically controlled cavity, the sealing groove is arranged on the annular outer side of the electrically controlled cavity, a semi-axial hole structure is provided in the electrically controlled cavity, and the guide groove is formed between the cavity wall of the electrically controlled cavity and the outer wall of the semi-axial hole structure.

[0014] In some embodiments, the distance between the sealing groove and the electric control cavity is 4-8 mm.

[0015] In some embodiments, a first arc-shaped guide portion is provided at the end of the guide member.

[0016] In some embodiments, the inner side wall of the guide member is provided with a second arc-shaped guide portion that cooperates with the guide groove.

[0017] In some embodiments, the outer side wall of the guide member is provided with a third arc-shaped guide portion that cooperates with the guide groove.

[0018] In some embodiments, the first shell and the second shell are respectively a left shell and a right shell, the ring body of the sealing ring includes a polygonal portion and an arc-shaped portion, the polygonal portion is located on the upper side, and the arc-shaped portion is located on the lower side, the polygonal portion matches the upper contour of the electric control cavity, and the arc-shaped portion matches the contour of the semi-axial hole structure.

[0019] In some embodiments, in each group of the protrusion structures, a plurality of protrusions in the first protrusions and the second protrusions are arranged in a triangle.

[0020] In some embodiments, a cross-sectional shape of each of the first protrusion and the second protrusion is an arc or a polygon.

[0021] Another object of the present utility model is to provide a vehicle, comprising the above-mentioned sealing structure of the electric drive axle housing.

[0022] The sealing structure of an electric drive axle housing and a vehicle provided by the embodiment of the utility model have the following beneficial effects:

[0023] (1) By arranging a guide member on the second housing, and opening a sealing groove for installing a sealing ring and a guide groove cooperating with the guide member on the first housing, when assembling the first housing and the second housing, the guide member extends into the guide groove to guide and position the installation of the second housing, thereby improving the assembly accuracy; the sealing groove is arranged near the guide groove, and when the guide member extends into the guide groove, the sealing ring is blocked to prevent the sealing ring from falling out of the sealing groove, thereby improving the sealing performance of the electric drive axle housing;

[0024] (2) The number of protrusions in each group of protrusion structures is the same. In two adjacent groups of protrusion structures, the number of first protrusions in one group of protrusion structures is the same as the number of second protrusions in the other group of protrusion structures, so that the protrusion structures are evenly distributed on the inner and outer sides of the sealing ring, thereby improving the installation stability of the sealing ring in the sealing groove;

[0025] (3) A sealing protrusion may be provided on the sealing surface, and the width of the sealing protrusion is smaller than the width of the groove structure on the upper and lower sides of the sealing ring. When the second shell and the first shell are assembled, the sealing protrusion extends into the groove structure. The sealing protrusion plays a role in positioning and guiding during assembly, thereby improving the assembly accuracy; the height of the sealing protrusion is one-third of the depth of the sealing groove, thereby ensuring that after the first shell and the second shell are assembled, the degree of compression of the flange on the sealing ring will not be adversely affected by the provision of the sealing protrusion; the two flanges on the upper side of the sealing ring are respectively close to the sealing protrusion, thereby reducing the gap between the sealing protrusion and the flange, thereby improving the guiding effect of the sealing protrusion and the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of a first housing of a sealing structure of an electric drive axle housing according to an embodiment of the utility model;

[0028] Figure 2 is a schematic structural diagram of a second housing according to an embodiment of the utility model;

[0029] Figure 3yes Figure 2 A local enlarged view of the area marked A;

[0030] Figure 4 is a schematic structural diagram of a second housing and a sealing ring according to an embodiment of the utility model;

[0031] Figure 5 is a schematic diagram of a protrusion structure according to an embodiment of the utility model;

[0032] Figure 6 It is a cross-sectional view of a sealing ring in an embodiment of the utility model;

[0033] Figure 7 It is a schematic diagram of the installation state of the sealing ring in the embodiment of the utility model;

[0034] Figure 8 According to the utility model Figure 7 Enlarged view of the middle seal ring and seal groove;

[0035] Fig. 9 It is a schematic diagram of the installation state of a sealing ring according to another embodiment of the utility model.

[0036] Reference numerals:

[0037] 1. First shell; 11. Electric control cavity; 12. Semi-axial hole structure; 2. Sealing groove; 3. Sealing ring; 31. Polygonal portion; 32. Arc portion; 33. Protrusion structure; 331. First protrusion; 332. Second protrusion; 34. Flange; 4. Second shell; 41. Sealing surface; 42. Sealing protrusion; 5. Guide member; 51. First arc-shaped guide portion; 52. Second arc-shaped guide portion; 53. Third arc-shaped guide portion; 6. Guide groove. DETAILED DESCRIPTION

[0038] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0039] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present utility model will occur to those skilled in the art.

[0040] The accompanying drawings, which are included in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0041] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0042] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0043] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0044] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present invention. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.

[0045] The first embodiment of the utility model provides a sealing structure of an electric drive axle housing, such as Figure 1 , Figure 2 and Figure 4 As shown, the sealing structure of the electric drive axle housing includes:

[0046] A first housing 1, one side of which is provided with a sealing groove 2;

[0047] A sealing ring 3 is installed in the sealing groove 2;

[0048] The second shell 4 is docked with the first shell 1 and has a sealing surface 41 that cooperates with the sealing ring 3. The second shell 4 is also provided with a guide member 5. The first shell 1 is provided with a guide groove 6 that cooperates with the guide member 5. The guide groove 6 is arranged close to the sealing groove 2.

[0049] The first housing 1 is provided with a sealing groove 2 for installing the sealing ring 3, and the second housing 4 is provided with a sealing surface 41 that cooperates with the sealing ring 3. A guide member 5 is provided on the second housing 4, and a guide groove 6 that cooperates with the guide member 5 is provided on the first housing 1. During the installation process, one end of the guide member 5 is gradually inserted into the guide groove 6, which is convenient for the cooperation and installation of the first housing 1 and the second housing 4, and improves the assembly efficiency of the electric drive bridge housing. The guide groove 6 is arranged close to the sealing groove 2, so that the guide member 5 is installed at a position close to the sealing ring 3. The guide member 5 plays a role of limiting the sealing ring 3, avoiding the phenomenon that the sealing ring 3 moves out of the sealing groove 2 during the assembly process of the first housing 1 and the second housing 4, resulting in sealing failure, further improving the sealing performance of the electric drive bridge housing, and avoiding the phenomenon that the motor in the electric drive bridge housing is damaged by water erosion due to the failure of the sealing ring 3, thereby causing the electric drive bridge function to fail, and the vehicle has no power and cannot travel.

[0050] This solution does not need to add a circle of sealant to the outer end of the sealing ring 3, eliminates the gluing process, reduces the size and weight of the electric drive axle housing, and reduces the raw material input cost and assembly cost.

[0051] Specifically, the first shell 1 has an electric control cavity 11, a sealing groove 2 is arranged on the annular outer side of the electric control cavity 11, and a semi-axial hole structure 12 is arranged in the electric control cavity 11. The electric control cavity 11 accommodates the motor controller structure, and the semi-axial hole structure 12 is used to install the shaft. The electric control cavity 11 is arranged in an annular shape on the first shell 1, and the sealing groove 2 is arranged on the annular outer side of the electric control cavity 11. The sealing groove 2 provides an installation space for the installation of the sealing ring 3. A guide groove 6 is formed between the cavity wall of the electric control cavity 11 and the outer wall of the semi-axial hole structure 12. The guide groove 6 is used to cooperate with the guide member 5. After the first shell 1 and the second shell 4 are docked, the guide member 5 is located on the inner side of the sealing ring 3 to prevent the sealing ring 3 from escaping from the sealing groove 2. In addition, the guide groove 6 plays a positioning role for the installation of the guide member 5, which is conducive to the rapid and accurate installation of the first shell 1 and the second shell 4.

[0052] For example, the first housing 1 and the second housing 4 may be connected by bolts.

[0053] In some embodiments, Figure 3 As shown, the end of the guide member 5 is provided with a first arc-shaped guide portion 51. The first arc-shaped guide portion 51 plays a guiding role in the process of the guide member 5 entering the guide groove 6, increases the matching accuracy during the assembly process, reduces the accuracy error between the second shell 4 and the first shell 1, and makes the movement of the guide member 5 more stable.

[0054] Further, the contour of the cavity wall of the guide groove 6 close to the electric control cavity 11 and the contour of the outer wall of the guide groove 6 close to the semi-axial hole structure 12 are not necessarily consistent. According to the contour difference of the part of the side wall of the guide member 5 that matches the guide groove 6, different guide parts are set on the side wall of the guide member 5. Specifically, the inner side wall of the guide member 5 is provided with a second arc-shaped guide part 52 that matches the guide groove 6, and the outer side wall of the guide member 5 is provided with a third arc-shaped guide part 53 that matches the guide groove 6. The second arc-shaped guide part 52 and the third arc-shaped guide part 53 play a guiding role in the process of the guide member 5 entering the guide groove 6, increase the matching accuracy in the assembly process, reduce the accuracy error of the second shell 4 and the first shell 1, and make the guide member 5 move smoothly along the cavity wall of the electric control cavity 11 and the outer wall of the semi-axial hole structure 12.

[0055] In some embodiments, the distance between the sealing groove 2 and the electric control cavity 11 is 4-8 mm. The portion between the sealing groove 2 and the electric control cavity 11 can also be used as the guide groove 6.

[0056] Exemplarily, the sealing groove 2 is a groove of equal width surrounding the electric control cavity 11 , the width of the sealing groove 2 is 4.5 mm, the depth is 2 mm, the groove width and the groove depth are fixed values, and the molding process is simple.

[0057] The first shell 1 and the second shell 4 are respectively the left and right shells. The first shell 1 and the second shell 4 are installed along the left-right direction. Compared with the installation along the up-down direction, during installation, there is no need to hoist one of the shells and then assemble it with the other shell, which makes the operation more convenient.

[0058] like Figure 4 As shown, the shape of the sealing ring 3 matches the shape of the motor controller structure; specifically, the ring body of the sealing ring 3 includes a polygonal portion 31 and an arc portion 32, the polygonal portion 31 is located on the upper side, and the arc portion 32 is located on the lower side, the polygonal portion 31 matches the upper contour of the electric control cavity 11, and the arc portion 32 matches the contour of the semi-axial hole structure 12.

[0059] In some embodiments, Figure 5 As shown, the ring wall of the sealing ring 3 is provided with multiple groups of protrusion structures 33 connected to the side wall of the sealing groove 2, and the multiple groups of protrusion structures 33 are arranged at intervals along the circumference of the sealing ring 3, and each group of protrusion structures 33 includes a first protrusion 331 provided on the inner side of the sealing ring 3 and a second protrusion 332 provided on the outer side of the sealing ring 3. The protrusion structure 33 fixes the sealing ring 3 in the sealing groove 2, and ensures the stability of the sealing ring 3 when the first shell 1 and the second shell 4 are not connected, so as to improve the sealing performance after the first shell 1 and the second shell 4 are connected.

[0060] Furthermore, the number of protrusions in each group of protrusion structures 33 is the same, and in two adjacent groups of protrusion structures 33, the number of first protrusions 331 in one group of protrusion structures 33 is the same as the number of second protrusions 332 in the other group of protrusion structures 33, and therefore, the number of second protrusions 332 in one group of protrusion structures 33 is also the same as the number of first protrusions 331 in the other group of protrusion structures 33. This arrangement allows the first protrusions 331 and the second protrusions 332 in the protrusion structures 33 to be evenly distributed on the inner and outer sides of the sealing ring 3, further improving the installation stability of the sealing ring 3.

[0061] In each group of protrusion structures 33, a plurality of protrusions in the first protrusion 331 and the second protrusion 332 are arranged in a triangle, so as to improve the installation stability of the sealing ring 3. The number of protrusions in the first protrusion 331 and the second protrusion 332 in each group of protrusion structures 33 may include one or more, for example, the first protrusion 331 in each group of protrusion structures 33 has two protrusions, and the second protrusion 332 has one protrusion; or the first protrusion 331 in each group of protrusion structures 33 has three protrusions, and the second protrusion 332 has one protrusion; or the first protrusion 331 in each group of protrusion structures 33 has four protrusions, and the second protrusion 332 has two protrusions.

[0062] Exemplarily, the cross-sectional shape of each of the first protrusion 331 and the second protrusion 332 is an arc, a triangle, a rectangle, or a polygon.

[0063] The upper and lower sides of the sealing ring 3 are provided with groove structures so that the upper and lower sides of the sealing ring 3 form two flanges 34 respectively, and the upper and lower sides of the sealing ring 3 are respectively matched with the sealing surface 41 and the groove bottom of the sealing groove 2. In some embodiments, Figure 6-Figure 8 As shown, the cross section of the sealing ring 3 is in the shape of an inverted "I" so that the upper and lower flanges 34 of the sealing ring 3 respectively cooperate with the sealing surface 41 of the second housing 4 and the bottom of the sealing groove 2 of the first housing 1. The inverted "I"-shaped sealing ring 3 structure gives it a high structural stability. In the process of assembling the first housing 1 and the second housing 4 together, the upper and lower flanges 34 of the inverted "I"-shaped sealing ring 3 respectively have two contact points with the second housing 4 and the second housing 4; after the first housing 1 and the second housing 4 are assembled together, the second housing 4 squeezes the first housing 1, which will turn the point contact of the sealing ring 3 with the first housing 1 and the second housing 4 into surface contact, thereby increasing the contact area between the electric drive axle housing and the sealing ring 3 and improving the sealing performance. At the same time, since the sealing ring 3 is provided with a protruding structure 33, the setting of the protruding structure 33 leaves a certain gap between the ring body of the sealing ring 3 and the sealing groove 2. This gap allows the sealing ring 3 to fill the sealing groove 2 when it is extruded and deformed, and then the entire sealing ring 3 tightly fills the sealing groove 2. All contact surfaces of the sealing ring 3 are squeezed, thereby improving the stability of the sealing ring 3.

[0064] In some embodiments, the sealing surface 41 is a sealing plane, and there is no need to process a groove structure for installing the sealing ring 3 on the second shell 4, thereby eliminating the processing steps and saving processing costs.

[0065] In other embodiments, Fig. 9 As shown, the sealing surface 41 has a sealing protrusion 42, and the sealing protrusion 42 extends outward along the sealing surface 41. When the first shell 1 and the second shell 4 are installed, the sealing protrusion 42 extends into the groove structure at the upper part of the sealing surface 41, which plays a guiding role in assembly and makes the assembly precision higher. The width of the sealing protrusion 42 is smaller than the width of the groove structure, so that the sealing protrusion 42 can enter the groove structure more easily; the height of the sealing protrusion 42 is one third of the depth of the sealing groove 2, which will not affect the deformation of the sealing ring 3 due to compression when the first shell 1 and the second shell 4 are assembled.

[0066] The two flanges 34 on the upper side of the sealing ring 3 are close to the sealing protrusion 42. When the sealing protrusion 42 extends into the groove-shaped structure on the upper side of the sealing ring 3, the installation is more convenient and the guiding effect is improved.

[0067] In addition, a sealing protrusion 42 can also be set at the bottom of the sealing groove 2, which plays a guiding role when the sealing ring 3 is installed into the sealing groove 2, making it easier for the sealing ring 3 to be installed into the sealing groove 2. The width of the sealing protrusion 42 is smaller than the width of the groove structure, making it easier for the sealing protrusion 42 to enter the groove structure.

[0068] A second embodiment of the utility model provides a vehicle, comprising the above-mentioned sealing structure of an electric drive axle housing.

[0069] 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 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0070] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0071] In the description of the present invention, "plurality" means two or more.

[0072] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0073] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0074] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sealing structure of an electric drive axle housing, characterized in that: include: A first shell having a sealing groove formed on one side thereof; A sealing ring, installed in the sealing groove; The second shell is docked with the first shell, and the second shell has a sealing surface that cooperates with the sealing ring. The second shell is also provided with a guide piece, and the first shell is provided with a guide groove that cooperates with the guide piece, and the guide groove is arranged close to the sealing groove.

2. The sealing structure of an electric drive axle housing according to claim 1, characterized in that: The ring wall of the sealing ring is provided with multiple groups of protrusion structures connected to the side wall of the sealing groove, and the multiple groups of protrusion structures are arranged at intervals along the circumference of the sealing ring. Each group of protrusion structures includes a first protrusion arranged on the inner side of the sealing ring and a second protrusion arranged on the outer side of the sealing ring.

3. The sealing structure of an electric drive axle housing according to claim 2, characterized in that: The number of protrusions in each group of the protrusion structures is the same, and in two adjacent groups of the protrusion structures, the number of the first protrusions in one group of the protrusion structures is the same as the number of the second protrusions in the other group of the protrusion structures.

4. The sealing structure of an electric drive axle housing according to claim 1, characterized in that: The upper and lower sides of the sealing ring are provided with groove-shaped structures, and the upper and lower sides of the sealing ring respectively form two flanges, and the flanges on the upper and lower sides of the sealing ring respectively cooperate with the sealing surface and the bottom of the sealing groove; The sealing surface is a sealing plane; or The sealing surface has a sealing protrusion, the width of the sealing protrusion is smaller than the slot width of the slot-shaped structure, the height of the sealing protrusion is one third of the depth of the sealing slot, and the two flanges on the upper side of the sealing ring are respectively close to the sealing protrusion.

5. The sealing structure of an electric drive axle housing according to claim 1, characterized in that: The first shell has an electric control cavity, the sealing groove is arranged on the annular outer side of the electric control cavity, a semi-axial hole structure is arranged in the electric control cavity, and the guide groove is formed between the cavity wall of the electric control cavity and the outer wall of the semi-axial hole structure.

6. The sealing structure of an electric drive axle housing according to claim 5, characterized in that: The distance between the sealing groove and the electric control cavity is 4-8 mm.

7. The sealing structure of an electric drive axle housing according to claim 1, characterized in that: The end of the guide member is provided with a first arc-shaped guide portion; and / or The inner side wall of the guide member is provided with a second arc-shaped guide portion cooperating with the guide groove; and / or The outer side wall of the guide member is provided with a third arc-shaped guide portion matched with the guide groove.

8. The sealing structure of an electric drive axle housing according to claim 5, characterized in that: The first shell and the second shell are respectively a left shell and a right shell, the ring body of the sealing ring includes a polygonal portion and an arc-shaped portion, the polygonal portion is located on the upper side, and the arc-shaped portion is located on the lower side, the polygonal portion matches the upper contour of the electric control cavity, and the arc-shaped portion matches the contour of the semi-axial hole structure.

9. The sealing structure of an electric drive axle housing according to claim 2, characterized in that: In each group of the protrusion structures, a plurality of protrusions in the first protrusions and the second protrusions are arranged in a triangle shape; and / or A cross-sectional shape of each of the first protrusion and the second protrusion is an arc or a polygon.

10. A vehicle, characterized in that: A sealing structure for an electric drive axle housing comprising any one of claims 1-9.

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