Electric drive assembly housing, electric drive assembly, and vehicle

Abstract

An electric drive assembly housing, an electric drive assembly, and a vehicle. The electric drive assembly housing comprises a shell, a first accommodating cavity, and a differential mounting portion. The first accommodating cavity is arranged in the shell and is configured to accommodate a motor assembly and a speed reducer assembly. The differential mounting portion is arranged in the shell and is used for mounting a differential structure.

Description

Electric drive assembly housing, electric drive assembly and vehicle

[0001] This application claims priority to Chinese patent application No. 202420855146.3, filed on April 23, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of electric drive technology, and more particularly to an electric drive assembly housing, an electric drive assembly, and a vehicle. Background Technology

[0003] As the power source for a vehicle, the electric drive assembly typically includes a motor, a reducer, a differential, and other components. Summary of the Invention

[0004] The purpose of this disclosure is to provide an electric drive assembly housing, an electric drive assembly, and a vehicle to solve the corresponding technical problems.

[0005] To achieve the above objectives, in one aspect, some embodiments of this disclosure provide an electric drive assembly housing. The electric drive assembly housing includes a housing body, a first receiving cavity, and a differential mounting portion. The first receiving cavity is disposed inside the housing body and configured to receive a motor assembly and a reducer assembly. The differential mounting portion is disposed in the housing body and configured to mount a differential structure.

[0006] In some embodiments, the differential structure is a differential or a differential lock, and the differential mounting portion is configured to be adapted to connect with both the differential and the differential lock.

[0007] In some embodiments, the differential mounting portion includes a first bearing slot and a second bearing slot. The first bearing slot is configured to receive a first bearing on the differential or a first bearing on the differential lock, and the second bearing slot is configured to receive a second bearing on the differential or a second bearing on the differential lock.

[0008] In some embodiments, the shell body includes a first half-shell and a second half-shell, the first half-shell and the second half-shell are connected to each other, the first bearing groove is disposed on the first half-shell, and the second bearing groove is disposed on the second half-shell.

[0009] In some embodiments, the differential mounting portion includes a second receiving cavity disposed inside the housing body. The second receiving cavity communicates with the first receiving cavity and is configured to receive the differential structure.

[0010] In some embodiments, the differential structure is a differential or a differential lock. The electric drive assembly housing also includes a through-hole positioning portion disposed on the housing body. The projection of the through-hole positioning portion along its axial direction is located within the second receiving cavity. When the differential structure is the differential lock, the through-hole positioning portion is extended to form a through-hole for the differential lock's wiring harness to pass through.

[0011] In some embodiments, the via positioning part is a blind hole.

[0012] In some embodiments, the electric drive assembly housing further includes an electronic control mounting portion disposed on the housing body. The electronic control mounting portion is used to mount a motor controller, and the through-hole positioning portion is disposed adjacent to the electronic control mounting portion.

[0013] In some embodiments, the electric drive assembly housing further includes a decoupling mounting portion disposed on the housing body. The decoupling mounting portion is used to mount a decoupling mechanism.

[0014] In some embodiments, the decoupling mounting portion includes a first recess on the outer surface of the housing body, the first recess being configured to accommodate the decoupling mechanism. The decoupling mounting portion further includes a decoupling connection portion on the outer surface of the housing body, the decoupling connection portion being located within the first recess and used to connect the decoupling mechanism.

[0015] In some embodiments, the first recess and the differential mounting portion are arranged along a second direction, and the first recess and the differential mounting portion are arranged along a first direction with the first receiving cavity, wherein the first direction is perpendicular to the second direction.

[0016] In some embodiments, the electric drive assembly housing further includes an electronic control mounting portion. The electronic control mounting portion is disposed on the housing body and is used to mount a motor controller. The electronic control mounting portion includes a second recess disposed on the outer surface of the housing body, the second recess being configured to receive the motor controller and to position the high-voltage wiring harness interface of the motor controller within the second recess.

[0017] In some embodiments, the shell body includes a first half-shell and a second half-shell. The first half-shell and the second half-shell are connected to each other and together define the first receiving cavity, and the second recess is disposed on the outer surface of the first half-shell.

[0018] In some embodiments, the first receiving cavity includes a motor receiving cavity configured to receive the motor assembly and a reduction gear receiving cavity configured to receive the reducer assembly. The motor receiving cavity and the reduction gear receiving cavity are in communication with each other. The first half-shell includes a first portion and a second portion, the motor receiving cavity being located within the first portion, and the second portion being connected to the second half-shell and together defining the reduction gear receiving cavity.

[0019] The second portion has a protrusion that protrudes from the first portion, and the outer surface of the protrusion and the outer surface of the first portion form the second recess.

[0020] In some embodiments, the second recess and at least a portion of the first receiving cavity are arranged along a third direction, the differential mounting portion and the first receiving cavity are arranged along a first direction, and the third direction is perpendicular to the first direction.

[0021] On the other hand, some embodiments of this disclosure also provide an electric drive assembly. This electric drive assembly includes a motor assembly, a reducer assembly, a differential structure, and the aforementioned electric drive assembly housing. Both the motor assembly and the reducer assembly are mounted within the first receiving cavity, and the differential structure is mounted on the differential mounting portion.

[0022] In some embodiments, the differential structure is a differential lock or a differential.

[0023] In some embodiments, the differential mounting portion includes a second receiving cavity formed inside the housing body, the second receiving cavity communicating with the first receiving cavity, the differential lock being received in the second receiving cavity, the electric drive assembly housing further including a through hole and a sealing structure, the through hole being disposed in the housing body and communicating with the second receiving cavity, the differential lock wiring harness passing through the through hole, and the sealing structure being disposed between the through hole and the wiring harness.

[0024] In some embodiments, the electric drive assembly further includes a decoupling mechanism. The electric drive assembly housing also includes a decoupling mounting portion disposed on the housing body. The decoupling mechanism is mounted on the decoupling mounting portion.

[0025] In some embodiments, the electric drive assembly further includes a motor controller. The electric drive assembly housing also includes an electronic control mounting portion disposed on the housing body, and the motor controller is mounted on the electronic control mounting portion.

[0026] In another aspect, some embodiments of this disclosure also provide a vehicle including the electric drive assembly described above.

[0027] Through the above technical solutions, since the motor assembly, reducer assembly, and differential structure have a transmission connection, the electric drive assembly housing provided in some embodiments of this disclosure allows the motor assembly, reducer assembly, and differential structure to be mounted on the same housing body, thereby achieving integration of the motor assembly, reducer assembly, and differential structure, and thus improving the integration and structural compactness of the electric drive assembly. This reduces the size of the electric drive assembly, thereby minimizing its space occupation in the vehicle, and also facilitates the overall installation of the electric drive assembly.

[0028] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 is a perspective view of an electric drive assembly according to some embodiments of the present disclosure;

[0031] Figure 2 is a side view of an electric drive assembly according to some embodiments of the present disclosure, wherein a differential lock is installed in the housing of the electric drive assembly;

[0032] Figure 3 is a partial cross-sectional view along line AA in Figure 2;

[0033] Figure 4 is a partial cross-sectional view along line BB in Figure 2;

[0034] Figure 5 is a side view of another electric drive assembly according to some embodiments of the present disclosure, wherein a differential is installed in the electric drive assembly housing;

[0035] Figure 6 is a partial cross-sectional view along line CC in Figure 5;

[0036] Figure 7 is a partial cross-sectional view along line DD in Figure 5;

[0037] Figure 8 is a perspective view of an electric drive assembly according to some embodiments of the present disclosure from another angle, wherein the motor controller is not shown;

[0038] Figure 9 is a perspective view of an electric drive assembly according to some embodiments of the present disclosure from another angle.

[0039] Figure 10 is a schematic diagram of an electric drive assembly according to some embodiments of the present disclosure, wherein the decoupling mechanism is in the disconnected state;

[0040] Figure 11 is a schematic diagram of an electric drive assembly according to some embodiments of the present disclosure, wherein the decoupling mechanism is in a connected state;

[0041] Figure 12 is a schematic diagram of an electric drive assembly according to some embodiments of the present disclosure, wherein the decoupling mechanism is in a connected state.

[0042] Reference numerals: 1000-Vehicle; 100-Electric drive assembly housing; 200-Decoupling mechanism; 300-Motor controller; 301-High voltage wiring harness interface; 400-Motor assembly; 500-Reducer assembly; 600-Differential structure; 10-Electric drive assembly; 11-Second receiving cavity; 121-First bearing groove; 122-Second bearing groove; 2-Differential; 3-Differential lock; 31-Wiring harness; 4-First half-shell; 41-First part; 42-Second part; 43-First shaft hole; 421-Protrusion; 5-Second half-shell; 51-Second shaft hole; 6-Through hole positioning part; 7-Electrical control mounting part; 71-Second recessed part; 72-Mounting base; 8-Through hole; 9-Decoupling connection part; 13-Sealing structure; 14-First recessed part. Detailed Implementation

[0043] The specific embodiments of this disclosure 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 this disclosure.

[0044] In this disclosure, unless otherwise stated, the X, Y, and Z directions are defined according to the drawing orientation in FIG1. ​​When the electric drive assembly 10 is mounted on a vehicle, the X direction can be the vehicle's longitudinal direction, the Y direction can be the vehicle's lateral direction, and the Z direction can be the vehicle's vertical direction. "Inner" and "outer" refer to the inner and outer contours of the corresponding components. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0045] In related technologies, electric drive assemblies have relatively low overall integration and large size. When installed in a vehicle, electric drive assemblies occupy a significant amount of space.

[0046] Therefore, some embodiments of this disclosure provide an electric drive assembly housing, an electric drive assembly, and a vehicle.

[0047] In some embodiments, as shown in Figures 1 to 11, the electric drive assembly housing 100 provided in some embodiments of this disclosure includes a housing body, a first receiving cavity, and a differential mounting portion. The first receiving cavity is disposed inside the housing body and configured to receive a motor assembly 400 and a reducer assembly 500. The differential mounting portion is disposed in the housing body and is used to mount a differential structure 600.

[0048] The motor assembly 400, reducer assembly 500, and differential structure 600 are connected by a transmission link. The electric drive assembly housing 100 provided in some embodiments of this disclosure allows the motor assembly 400, reducer assembly 500, and differential structure 600 to be mounted on the same housing body, thereby achieving integration of the motor assembly 400, reducer assembly 500, and differential structure 600, and thus improving the integration and structural compactness of the electric drive assembly 10. This reduces the size of the electric drive assembly 10, thus minimizing its space occupation in the vehicle, and also facilitates the overall installation of the electric drive assembly 10.

[0049] The differential structure 600 can be installed inside or outside the housing body, and this disclosure does not limit it in this way.

[0050] In some embodiments, the differential mounting portion may include a second receiving cavity 11 disposed inside the housing body. The second receiving cavity 11 communicates with the first receiving cavity and is configured to accommodate the differential structure 600. Since the motor assembly 400 is driven by the reducer assembly 500, and the reducer assembly 500 is driven by the differential structure 600, the power generated by the motor assembly 400 is reduced and amplified by the reducer assembly 500 before being transmitted to the wheels via the differential structure 600. By placing the differential structure 600 within the second receiving cavity 11, which communicates with the first receiving cavity, it facilitates the drive connection between the differential structure 600 and the reducer assembly 500 within the first receiving cavity; furthermore, the housing body provides protection for the differential structure 600.

[0051] As shown in Figures 2 and 5, the aforementioned differential structure 600 can be a differential 2 or a differential lock 3 (i.e., a differential 2 with a locking function). The differential mounting part is configured to be compatible with both the differential 2 and the differential lock 3. In other words, the differential mounting part can be connected to both the differential 2 and the differential lock 3. This allows the electric drive assembly housing 100 provided in some embodiments of this disclosure to be applicable to different vehicle models. That is, the electric drive assembly housing 100 can be used in vehicles equipped with a differential 2 as well as vehicles equipped with a differential lock 3, achieving the versatility of the electric drive assembly housing 100. During the production process of the electric drive assembly housing 100, a single set of manufacturing molds can be used to produce electric drive assembly housings 100 adaptable to different vehicle models, thereby reducing vehicle manufacturing costs.

[0052] To enable the differential mounting section to accommodate both the differential 2 and the differential lock 3, in some embodiments, the differential mounting section may include a first connecting portion and a second connecting portion, with a first distance between them. In this case, the differential 2 may be provided with a first mounting structure and a second mounting structure, with a second distance equal to the first distance between them. The differential lock 3 may be provided with a third mounting structure and a fourth mounting structure, with a third distance equal to the first distance between them. Since the first, second, and third distances are all equal, the first and second mounting structures can be connected to the first and second connecting portions respectively, and the third and fourth mounting structures can be connected to the first and second connecting portions respectively.

[0053] In other embodiments, as shown in Figures 4 and 7, the differential mounting portion includes a first bearing groove 121 and a second bearing groove 122. The first bearing groove 121 is configured to receive a first bearing on the differential 2 or a first bearing on the differential lock 3, and the second bearing groove 122 is configured to receive a second bearing on the differential 2 or a second bearing on the differential lock 3.

[0054] Since the outer diameters of the first and second bearings on differential 2 are the same as those on differential lock 3, and the distance between the first and second bearings on differential 2 is equal to the distance between the first and second bearings on differential lock 3, the first bearing groove 121 can accommodate both the first bearing on differential 2 and the first bearing on differential lock 3, and the second bearing groove 122 can accommodate both the second bearing on differential 2 and the second bearing on differential lock 3.

[0055] To facilitate the connection between the differential 2 or differential lock 3 and the first bearing groove 121 and the second bearing groove 122, in some embodiments, as shown in Figures 4 and 7, the housing body includes a first half-shell 4 and a second half-shell 5. The first half-shell 4 and the second half-shell 5 are interconnected, with the first bearing groove 121 located on the first half-shell 4 and the second bearing groove 122 located on the second half-shell 5. Since the first bearing groove 121 is located on the first half-shell 4 and the second bearing groove 122 is located on the second half-shell 5, during the installation of the differential 2 or differential lock 3, the first end of the differential 2 or differential lock 3 can be first inserted into one of the first bearing groove 121 and the second bearing groove 122, and the other of the first bearing groove 121 and the second bearing groove 122 can be installed onto the second end of the differential 2 or differential lock 3. The second half-shell 5 and the first half-shell 4 are then interconnected, thereby securing the differential 2 or differential lock 3.

[0056] In an embodiment where the shell body has a second receiving cavity 11 for accommodating the differential structure 600, it is understood that the first half-shell 4 and the second half-shell 5 together define the second receiving cavity 11, and after the first half-shell 4 and the second half-shell 5 are engaged with each other, the differential structure 600 is accommodated in the second receiving cavity 11.

[0057] To further improve the compatibility of the electric drive assembly housing 100, in some embodiments, as shown in FIG6, the electric drive assembly housing 100 further includes a through-hole positioning part 6, which is disposed on the housing body, and the projection of the through-hole positioning part 6 along the axial direction of the through-hole positioning part 6 can be located within the second receiving cavity 11. The electric drive assembly housing 100 may also include a through-hole 8, through which the through-hole positioning part 6 can be penetrated for the wiring harness 31 of the differential lock 3 to pass (as shown in FIG3).

[0058] When the electric drive assembly 10 provided in some embodiments of this disclosure is used in a vehicle equipped with a differential lock 3, since the differential lock 3 needs to be electrically connected to the motor controller 300 via a wiring harness 31, the through-hole positioning part 6 can be passed through to form a through-hole 8, allowing the wiring harness 31 of the differential lock 3 to pass through the through-hole 8 and connect to the motor controller 300. Here, the through-hole positioning part 6 serves to pre-position the through-hole 8. The projection of the through-hole positioning part 6 along its axial direction is located within the second receiving cavity 11, ensuring that after the through-hole positioning part 6 is processed into the through-hole 8, the through-hole 8 can connect to the second receiving cavity 11.

[0059] In some embodiments, as shown in FIG3, the electric drive assembly housing 100 further includes a sealing structure 13, which may be disposed at the through hole 8 to seal the gap between the hole wall of the through hole 8 and the wiring harness 31.

[0060] It is understood that when the electric drive assembly 10 provided in some embodiments of this disclosure is used in a vehicle equipped with a differential 2, it is not necessary to use the through hole positioning part 6, and the through hole positioning part 6 will not affect the installation of the differential 2. That is to say, the electric drive assembly housing 100 does not need to include the through hole 8. By providing the through hole positioning part 6, the housing body provided in some embodiments of this disclosure can meet both the installation requirements of the differential 2 and the wiring requirements during the installation of the differential lock 3.

[0061] This disclosure does not limit the structure of the through-hole positioning part 6. In some embodiments, the through-hole positioning part 6 is a blind hole. The opening of the blind hole may be disposed toward the second receiving cavity 11, or it may be disposed toward the outside of the housing body. The blind hole can maintain the sealing state of the second receiving cavity 11 and can also mark the drilling position of the through hole 8, thereby facilitating the processing of the housing body into a housing body suitable for the installation of the differential lock 3.

[0062] In other embodiments, the through-hole positioning part 6 may also be an annular groove.

[0063] To further improve the integration and structural compactness of the electric drive assembly 10, in some embodiments, as shown in FIG8, the electric drive assembly housing 100 further includes an electronic control mounting part 7, which is disposed on the housing body and is used to mount the motor controller 300.

[0064] In some embodiments, as shown in FIG6, the through-hole positioning part 6 may be disposed close to the electronic control mounting part 7. By disposing the through-hole positioning part 6 close to the electronic control mounting part 7, the wiring distance between the differential 2 and the motor controller 300 can be shortened, and the wiring routing and arrangement can also be facilitated.

[0065] In some embodiments, as shown in Figures 8 and 9, the electric control mounting portion 7 may include a second recess 71 disposed on the outer surface of the housing body. The second recess 71 is configured to accommodate the motor controller 300 and to allow the high-voltage wiring harness interface 301 of the motor controller 300 to be located within the second recess 71. By providing the second recess 71 on the outer surface of the housing body and placing the motor controller 300 and its high-voltage wiring harness interface 301 within the second recess 71, the mounting height of the motor controller 300 can be reduced, thereby reducing the overall height (i.e., the dimension in the Z direction) of the electric drive assembly 10, making the overall structure of the electric drive assembly 10 more compact and with higher integration.

[0066] In this way, when the electric drive assembly 10 is installed in the front compartment of the vehicle, the distance between the hood and the top of the electric drive assembly 10 can be increased. This prevents the hood from directly hitting the electric drive assembly 10 when it is deformed by an impact, thus providing more deformation buffer space for the hood. Furthermore, the reduced installation height of the motor controller 300 also allows for more space to be allocated for the high-voltage wiring harness interface 301.

[0067] In some embodiments, as shown in FIG8, the electrical control mounting part 7 may further include a plurality of mounting bases 72. A connecting part is formed on the motor controller 300, and a connecting hole is formed on the connecting part, through which a bolt can pass to engage with the mounting base 72.

[0068] In some embodiments, as shown in FIG8, the housing body includes a first half-shell 4 and a second half-shell 5, which are interconnected and jointly define a first receiving cavity. A second recess 71 is provided on the outer surface of the first half-shell 4. By providing the second recess 71 on the outer surface of the first half-shell 4, the connection between the first half-shell 4 and the second half-shell 5 can be prevented from being located within the second recess 71, thereby avoiding the connection between the first half-shell 4 and the second half-shell 5 from affecting or interfering with the installation of the motor controller 300, and preventing the installation height of the motor controller 300 from shifting upwards due to the need to avoid the connection between the first half-shell 4 and the second half-shell 5. The second recess 71 being provided on the outer surface of the first half-shell 4 facilitates a reduction in the installation height of the motor controller 300, improving the structural compactness and integration of the electric drive assembly 10.

[0069] In some embodiments, the first receiving cavity includes a motor receiving cavity for receiving the motor assembly 400 and a reduction receiving cavity for receiving the reducer assembly 500, the motor receiving cavity and the reduction receiving cavity being in communication with each other. As shown in FIG8, the first half-shell 4 includes a first portion 41 and a second portion 42, the motor receiving cavity being located within the first portion 41, and the second portion 42 being connected to the second half-shell 5 and jointly defining the reduction receiving cavity. In this embodiment, the motor assembly 400 and the reducer assembly 500 share the same housing body, which helps to improve the structural compactness of the electric drive assembly 10.

[0070] In some embodiments, as shown in FIG8, the second portion 42 has a protrusion 421 that protrudes from the first portion 41. The outer surface of the protrusion 421 and the outer surface of the first portion 41 form a second recess 71. Since the first receiving cavity includes a motor receiving cavity and a reduction gear receiving cavity that are in communication with each other, and the motor receiving cavity is located within the first portion 41 of the first half-shell 4, and the first half-shell 4 also includes a second portion 42, in which a portion of the reduction gear receiving cavity is formed, by providing the protrusion 421 at one end of the motor controller 300, the dimensions of the first half-shell 4 in the X direction (i.e., the first direction) and the Y direction (i.e., the second direction) are sufficient to accommodate the motor controller 300. Furthermore, the protrusion 421 can be used, on the one hand, to cooperate with the second half-shell 5 to connect the first half-shell 4 and the second half-shell 5, and on the other hand, it can also protect the high-voltage wiring harness interface 301 of the motor controller 300.

[0071] In some embodiments, as shown in FIG8, the second recess 71 and at least a portion of the first receiving cavity are arranged along the Z direction (i.e., the third direction), and the differential mounting portion is arranged along the X direction with the first receiving cavity, the Z direction being perpendicular to the X direction. The arrangement of the second recess 71 and at least a portion of the first receiving cavity along the Z direction allows the space in the electric drive assembly housing 100 in the Z direction to be used to arrange the motor controller 300 and the high-voltage wiring harness interface 301 of the motor controller 300. The arrangement of the differential mounting portion and the first receiving cavity along the X direction allows the differential structure 600 to be adjacent to the reducer assembly 500 in the first receiving cavity, facilitating the transmission connection between the differential structure 600 and the reducer assembly 500 in the first receiving cavity, and also facilitating the transmission connection between the differential structure 600 and the wheel. The differential mounting portion and the second recess 71 are located at different positions in the first receiving cavity, thereby allowing for the rational arrangement of the differential structure 600 and the motor controller 300 using different positions in the electric drive assembly housing 100.

[0072] To further improve the integration of the electric drive assembly 10, in some embodiments, the electric drive assembly housing also includes a decoupling mounting portion disposed on the housing body, which is used to mount the decoupling mechanism 200. As shown in Figures 10 and 11, for electric vehicles with four-wheel drive functionality, the vehicle typically includes at least one drive motor. When power demand is high, the drive motor and another power source operate simultaneously; when power demand is low, only one power source can be used. The decoupling mechanism 200 can disconnect the transmission connection between the output of the drive motor and the wheels, thereby reducing losses. By providing a decoupling mounting portion on the housing body and mounting the decoupling mechanism 200 on the housing body, the decoupling mechanism 200 can be integrated on the housing body, further reducing the size of the electric drive assembly 10.

[0073] To rationally arrange the decoupling mechanism 200, in some embodiments, as shown in FIG1, the decoupling mounting portion includes a first recess 14 disposed on the outer surface of the housing body, the first recess 14 being configured to accommodate the decoupling mechanism 200. As shown in FIG2, the decoupling mounting portion further includes a decoupling connecting portion 9 disposed on the outer surface of the housing body, the decoupling connecting portion 9 being located within the first recess 14 and used to connect the decoupling mechanism 200. By providing the decoupling connecting portion 9 on the outer surface of the housing body and placing the decoupling connecting portion 9 within the first recess 14, the decoupling mechanism 200 can be integrated into the housing body, and the first recess 14 can be used to accommodate the decoupling mechanism 200. This avoids increasing the size of the electric drive assembly 10 due to the integration of the decoupling mechanism 200, allowing the electric drive assembly 10 to form a highly integrated and compact whole, thereby preventing the electric drive assembly 10 from occupying too much space in the vehicle.

[0074] In some embodiments, the decoupling mounting part may also include multiple bolt holes, and the decoupling mechanism 200 may be provided with a connecting hole for bolts to pass through, so that the bolts can pass through the connecting hole and connect with the bolt hole.

[0075] To fully utilize the shape of the housing body for arranging the differential structure 600, motor assembly 400, reduction assembly, and decoupling mechanism 200, in some embodiments, as shown in Figures 1 to 4, the first recess 14 and the differential mounting portion are arranged along the Y direction, and the first recess 14 and the differential mounting portion are arranged along the X direction with the first receiving cavity, the X direction being perpendicular to the Y direction. After passing through the reducer, the motor assembly 400 is connected to the vehicle's half-shaft via the differential structure 600, with the half-shafts respectively connected to opposite ends of the differential structure 600 along the Y direction. In this case, the decoupling mechanism 200 is arranged on one side of the differential structure 600 and positioned between the differential structure 600 and the vehicle's half-shaft. Thus, by arranging the first recess 14 and the differential mounting portion along the Y direction, it is advantageous to arrange the differential structure 600 and the decoupling mechanism 200 in the Y direction.

[0076] The motor assembly 400 and the reducer assembly 500 are arranged within the first receiving cavity. Since the motor assembly 400 has a certain dimension in the Y direction and the reducer assembly 500 has a certain dimension in the X direction, the housing body can be shaped to match the arrangement position of the motor assembly 400 and the reducer assembly 500, that is, the housing body encloses and forms the first recess 14. Since the first recess 14 and the differential mounting part are arranged along the X direction with the first receiving cavity, the decoupling mechanism 200 can also be accommodated in the first recess 14 formed by the housing body, thereby making the structure of the electric drive assembly 10 more compact.

[0077] In some embodiments, as shown in Figures 4 and 7, the first half-shell 4 includes a first shaft hole 43, and the second half-shell 5 includes a second shaft hole 51. A first bearing groove 121 is located within the first shaft hole 43, and a second bearing groove 122 is located within the second shaft hole 51. The first shaft hole 43 is for the drive shaft of the decoupling mechanism 200 to pass through and connect to the first end of the differential 2 or differential lock 3, and the second shaft hole 51 is for the half-shaft of the vehicle to pass through and connect to the second end of the differential 2 or differential lock 3.

[0078] Some embodiments of this disclosure also provide an electric drive assembly 10. The electric drive assembly 10 includes a motor assembly 400, a reducer assembly 500, a differential structure 600, and the aforementioned electric drive assembly housing 100. The motor assembly 400 and the reducer assembly 500 are both installed in a first receiving cavity, and the differential structure 600 is installed in a differential mounting portion.

[0079] In some embodiments, the differential structure 600 is a differential 2 or a differential lock 3. Using the same electric drive assembly housing 100 for different vehicle models allows for the installation of different types of differential structures 600, thereby further reducing vehicle manufacturing and production costs.

[0080] In some embodiments, the differential mounting portion includes a second receiving cavity 11 formed inside the housing body, the second receiving cavity 11 communicating with the first receiving cavity, and the differential lock 3 being received within the second receiving cavity 11. In this case, the electric drive assembly housing 100 may further include a through hole 8 and a sealing structure 13, the through hole 8 being disposed in the housing body and communicating with the second receiving cavity 11. The wiring harness 31 of the differential lock 3 passes through the through hole 8. The sealing structure 13 is disposed between the through hole 8 and the wiring harness 31. Here, the through hole 8 may be formed by passing through the through hole positioning portion 6 mentioned above.

[0081] In some embodiments, the electric drive assembly 10 further includes a decoupling mechanism 200, and the electric drive assembly housing 100 further includes a decoupling mounting portion disposed on the housing body, wherein the decoupling mechanism 200 is mounted on the decoupling mounting portion.

[0082] In some embodiments, the electric drive assembly further includes a motor controller 300, and the electric drive assembly housing 100 further includes an electrical control mounting portion 7. The electrical control mounting portion 7 is disposed on the housing body, and the motor controller 300 is mounted on the electrical control mounting portion 7.

[0083] This disclosure also provides a vehicle 1000 in some embodiments. As shown in FIG12, the vehicle 1000 includes the electric drive assembly 10 described above. It is understood that in some embodiments of this disclosure, the vehicle may be a pure electric vehicle or a hybrid vehicle, and this disclosure does not limit it in this way.

[0084] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0085] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0086] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An electric drive assembly housing (100), comprising: Shell body; A first receiving cavity is disposed inside the housing body and configured to receive the motor assembly (400) and the reducer assembly (500); as well as A differential mounting part is provided on the housing body and configured to mount a differential structure (600).

2. The electric drive assembly housing (100) according to claim 1, wherein, The differential structure (600) is a differential (2) or a differential lock (3), and the differential mounting part is configured to be adapted to connect with both the differential (2) and the differential lock (3).

3. The electric drive assembly housing (100) according to claim 2, wherein, The differential mounting part includes: A first bearing slot (121) is configured to receive a first bearing on the differential (2) or a first bearing on the differential lock (3); and The second bearing groove (122) is configured to accommodate a second bearing on the differential (2) or a second bearing on the differential lock (3).

4. The electric drive assembly housing (100) according to claim 3, wherein, The shell body includes a first half shell (4) and a second half shell (5), the first half shell (4) and the second half shell (5) are connected to each other, the first bearing groove (121) is disposed on the first half shell (4), and the second bearing groove (122) is disposed on the second half shell (5).

5. The electric drive assembly housing (100) according to claim 1, wherein, The differential mounting portion includes a second receiving cavity (11), which is disposed inside the housing body and communicates with the first receiving cavity. The second receiving cavity (11) is configured to receive the differential structure (600).

6. The electric drive assembly housing (100) according to claim 5, wherein, The differential structure (600) is a differential (2) or a differential lock (3). The electric drive assembly housing (100) also includes a through hole positioning part (6). The through hole positioning part (6) is disposed on the housing body. The projection of the through hole positioning part (6) along the axial direction of the through hole positioning part (6) is located in the second receiving cavity (11). When the differential structure (600) is the differential lock (3), the through hole positioning part (6) is penetrated to form a through hole (8) for the wiring harness (31) of the differential lock (3) to pass through.

7. The electric drive assembly housing (100) according to claim 6, wherein, The via positioning part (6) is a blind hole.

8. The electric drive assembly housing (100) according to claim 6 further includes an electric control mounting part (7), the electric control mounting part (7) is disposed on the housing body, the electric control mounting part (7) is used to mount a motor controller (300), and the through hole positioning part (6) is disposed close to the electric control mounting part (7).

9. The electric drive assembly housing (100) according to any one of claims 1 to 8 further includes a decoupling mounting portion disposed on the housing body, the decoupling mounting portion being used to mount a decoupling mechanism (200).

10. The electric drive assembly housing (100) according to claim 9, wherein, The decoupling mounting portion includes a first recess (14) disposed on the outer surface of the shell body, the first recess (14) being configured to accommodate the decoupling mechanism (200), and the decoupling mounting portion further includes a decoupling connection portion (9) disposed on the outer surface of the shell body, the decoupling connection portion (9) being located within the first recess (14) and used to connect the decoupling mechanism (200).

11. The electric drive assembly housing (100) according to claim 10, wherein, The first recess (14) and the differential mounting portion are arranged along the second direction, and the first recess (14) and the differential mounting portion are arranged along the first receiving cavity along the first direction, which is perpendicular to the second direction.

12. The electric drive assembly housing (100) according to any one of claims 1 to 8 further includes an electric control mounting part (7), the electric control mounting part (7) being disposed on the housing body and used for mounting a motor controller (300), the electric control mounting part (7) including a second recess (71) disposed on the outer surface of the housing body, the second recess (71) being configured to receive the motor controller (300) and to place the high-voltage wiring harness interface (301) of the motor controller (300) within the second recess (71).

13. The electric drive assembly housing (100) according to claim 12, wherein, The shell body includes a first half-shell (4) and a second half-shell (5), the first half-shell (4) and the second half-shell (5) are connected to each other and together define the first receiving cavity, and the second recess (71) is disposed on the outer surface of the first half-shell (4).

14. The electric drive assembly housing (100) according to claim 13, wherein, The first receiving cavity includes a motor receiving cavity configured to receive the motor assembly (400) and a reduction receiving cavity configured to receive the reducer assembly (500), the motor receiving cavity and the reduction receiving cavity being in communication with each other, the first half-shell (4) including a first part (41) and a second part (42), the motor receiving cavity being located within the first part (41), and the second part (42) being connected to the second half-shell (5) and jointly defining the reduction receiving cavity; The second part (42) has a protrusion (421) that protrudes from the first part (41), and the outer surface of the protrusion (421) and the outer surface of the first part (41) form the second recess (71).

15. The electric drive assembly housing (100) according to claim 12, wherein, The second recess (71) and at least a portion of the first receiving cavity are arranged along a third direction, the differential mounting portion and the first receiving cavity are arranged along a first direction, and the third direction is perpendicular to the first direction.

16. An electric drive assembly (10) comprising a motor assembly (400), a reducer assembly (500), a differential structure (600), and an electric drive assembly housing (100) according to any one of claims 1 to 15, wherein the motor assembly (400) and the reducer assembly (500) are both mounted in a first receiving cavity, and the differential structure (600) is mounted on the differential mounting portion.

17. The electric drive assembly (10) according to claim 16, wherein, The differential structure (600) is a differential lock (3) or a differential (2).

18. The electric drive assembly (10) according to claim 17, wherein, The differential mounting portion includes a second receiving cavity (11) formed inside the housing body, the second receiving cavity (11) communicating with the first receiving cavity, the differential lock (3) being received in the second receiving cavity (11), the electric drive assembly housing (100) further includes a through hole (8) and a sealing structure (13), the through hole (8) being disposed in the housing body and communicating with the second receiving cavity (11), the wiring harness (31) of the differential lock (3) passing through the through hole (8), and the sealing structure (13) being disposed between the through hole (8) and the wiring harness (31).

19. The electric drive assembly (10) according to claim 16, further comprising a decoupling mechanism (200), wherein, The electric drive assembly housing (100) further includes a decoupling mounting part disposed on the housing body, and the decoupling mechanism (200) is mounted on the decoupling mounting part.

20. The electric drive assembly (10) according to claim 16, further comprising a motor controller (300), wherein, The electric drive assembly housing (100) further includes an electric control mounting part (7), which is disposed on the housing body, and the motor controller (300) is mounted on the electric control mounting part (7).

21. A vehicle (1000) comprising an electric drive assembly (10) according to any one of claims 16 to 20.

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