Electric drive axle assembly and vehicle

Abstract

The utility model relates to an electric drive axle assembly and a vehicle, the electric drive axle assembly comprises an electric control assembly, a motor assembly and a speed reducer assembly which are integrally installed, the speed reducer assembly comprises a gear set and a differential mechanism, and the gear set is used for being in transmission connection between the differential mechanism and the motor assembly; the extension direction of the first output shaft of the motor assembly is different from the extension direction of the second output shaft of the differential mechanism. The electric control assembly, the motor assembly and the speed reducer assembly are integrally installed into the electric drive axle assembly, so that the structure is compact, and the number of parts is reduced. The extension directions of the motor assembly and the output shaft of the differential mechanism are different, and the situation that the size of the electric drive axle assembly in one direction is too large, consequently, the occupied space in the direction is large, and arrangement is not facilitated can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of electric drive technology, and in particular to an electric drive axle assembly and a vehicle. Background Art

[0002] In pure electric vehicles or hybrid vehicles, the drive axle is changed from the drive axle of traditional vehicles to an electric drive axle, which is connected to the reducer through a motor. In related technologies, the electric drive axle mostly adopts the method of coaxial arrangement of the motor and the reducer or stacking the motor and the reducer up and down. The existing arrangement method results in a large size in one direction and a non-compact structure. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides an electric drive axle assembly and a vehicle.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an electric drive axle assembly, comprising an electronic control component, a motor component and a reducer component that are integrated into one body, wherein the reducer component comprises a gear set and a differential, wherein the gear set is used for transmission connection between the differential and the motor assembly, wherein an extension direction of a first output shaft of the motor assembly is different from an extension direction of a second output shaft of the differential.

[0005] Optionally, an extension direction of the first output shaft is perpendicular to an extension direction of the second output shaft.

[0006] Optionally, the gear set includes a hypoid gear, and the hypoid gear includes a driving gear and a driven gear, the driving gear is coaxially connected to the first output shaft, and the driven gear is coaxially connected to the second output shaft.

[0007] Optionally, the electronic control component is connected to the radial outside of the motor component, and the length extension direction of the electronic control component is the extension direction of the first output shaft.

[0008] Optionally, the motor assembly includes a motor and a motor housing, and the electronic control assembly is connected to the motor housing and together with the motor housing, forms an accommodating cavity for accommodating the motor.

[0009] Optionally, the reducer assembly includes a reducer housing, which forms a cavity for accommodating the gear set and the differential. The reducer housing is connected to one axial side of the motor housing and together with the motor housing, forms an accommodating cavity for accommodating the motor.

[0010] Optionally, the volume density of the electric drive axle assembly is 15 kW / L to 25 kW / L.

[0011] Optionally, the dimension of the electric drive axle assembly along the first direction is 470mm-570mm, the dimension along the second direction is 250mm-270mm, and the dimension along the third direction is 303mm-343mm, and the first direction, the second direction and the third direction are configured to be orthogonal to each other.

[0012] Optionally, the electric drive power of the electric drive axle assembly is configured to be 280kW to 380kW.

[0013] Optionally, the motor assembly and the reducer assembly are respectively two groups,

[0014] Among them, the number of the electronic control components is one group, and one group of the electronic control components is connected to two groups of the motor components and two groups of the reducer components at the same time, or the number of the electronic control components is two groups, and the two groups of the electronic control components are respectively connected to the two groups of the motor components and the two groups of the reducer components in a one-to-one correspondence.

[0015] According to a second aspect of an embodiment of the present disclosure, a vehicle is provided, comprising the electric drive axle assembly provided by the present disclosure.

[0016] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the electronic control component, the motor component and the reducer component are integrated and installed into an electric drive axle assembly, so that the structure is compact and the number of parts is reduced. The extension direction of the output shaft of the motor component and the differential is different, which can avoid the electric drive axle assembly being too large in one direction, resulting in a large space occupied in that direction, which is not conducive to layout.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] Figure 1 It is a schematic diagram of the structure of an electric drive axle according to an exemplary embodiment.

[0020] Figure 2 is an exploded schematic diagram of an electric drive axle according to an exemplary embodiment.

[0021] Figure 3 is a partial structural perspective view of an electric drive axle according to a first exemplary embodiment.

[0022] Figure 4 FIG. 1 is a partial structural side view of an electric drive axle according to a first exemplary embodiment.

[0023] Figure 5 FIG. 1 is a partial structural top view of an electric drive axle according to a first exemplary embodiment.

[0024] Figure 6 is a partial structural perspective view of an electric drive axle according to a second exemplary embodiment.

[0025] Figure 7 FIG. 1 is a partial structural side view of an electric drive axle according to a second exemplary embodiment.

[0026] Figure 8 is a partial structural top view of an electric drive axle according to a second exemplary embodiment.

[0027] Fig. 9 is a partial structural perspective view of an electric drive axle according to a third exemplary embodiment.

[0028] Fig.10 is a partial structural top view of an electric drive axle according to a third exemplary embodiment.

[0029] Fig.11 is a partial structural perspective view of an electric drive axle according to a fourth exemplary embodiment.

[0030] Description of Reference Numerals

[0031] 100 - electronic control assembly, 200 - motor assembly, 210 - motor, 220 - motor housing, 211 - first output shaft, 300 - reducer assembly, 310 - gear set, 311 - driving gear, 312 - passive gear, 320 - differential, 321 - second output shaft, 330 - reducer housing. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0033] In this disclosure, unless otherwise stated, directional words such as "upper and lower" are defined according to the direction of use of the vehicle, the "x" direction refers to the left and right direction of the vehicle, the "y" direction refers to the front and rear direction of the vehicle, and the "z" direction refers to the up and down direction of the vehicle. For details, please refer to the coordinate axes in the attached drawings. "Inside and outside" are defined according to the contours of the corresponding parts. The terms "first, second" and the like used in this disclosure are used to distinguish one element from another and do not have order or importance.

[0034] Reference Figure 1 and Figure 2 The embodiment of the present disclosure provides an electric drive axle assembly, including an electronic control component 100, a motor component 200 and a reducer component 300 which are integrated and installed as one. That is, the electric drive axle assembly in the embodiment of the present disclosure is constructed as a three-in-one integrated structure, which reduces the number of parts and is more convenient for layout, especially in pure electric and hybrid electric vehicles, which is more convenient to meet the space layout requirements. Among them, the reducer component 300 includes a gear set 310 and a differential 320, and the gear set 310 is used for transmission connection between the differential 320 and the motor component 200, so as to transmit the force output by the motor component 200 through the first output shaft 211 to the differential 320, and the differential 320 is used to connect with the wheel through the second output shaft 321. Among them, the extension direction of the first output shaft 211 of the motor assembly 200 is different from the extension direction of the second output shaft 321 of the differential 320. For example, the second output shaft 321 of the differential 320 can be set to extend along the x-direction in order to be connected to the wheel, while the extension direction of the first output shaft 211 of the motor assembly 200 can be other directions that are at an angle to the x-direction (not parallel to the x-direction).

[0035] Through the above technical solution, the electric control component 100, the motor component 200 and the reducer component 300 are integrated and installed into an electric drive axle assembly, making the structure compact and reducing the number of parts. The extension direction of the output shaft of the motor component 200 and the differential 320 is different, which can avoid the electric drive axle assembly being too large in one direction, resulting in a large space occupied in this direction, which is not conducive to layout.

[0036] In one embodiment, the extension direction of the first output shaft 211 is perpendicular to the extension direction of the second output shaft 321. Figures 1 to 11 , the first output shaft 211 can be arranged along the y direction, and the second output shaft 321 can be arranged along the x direction. The vertical arrangement can effectively reduce the dimensions in each direction to the minimum dimension. In other embodiments, the first output shaft 211 can also be arranged to extend along the z direction.

[0037] According to an embodiment of the present disclosure, the gear set 310 may include a hypoid gear. The difference in the extension direction of the first output shaft 211 and the second output shaft 321 may be achieved by the hypoid gear. Specifically, referring to Figures 2 to 11 The hypoid gear includes a driving gear 311 and a driven gear 312. The driving gear 311 can be coaxially connected to the first output shaft 211, and the driven gear 312 can be coaxially connected to the second output shaft 321. In other embodiments, the gear set 310 can also be a gear box structure, and transmission is achieved through the cooperation between multiple gears. For example, the change of transmission direction can be achieved through sector teeth or helical gears or bevel gears, which will not be described in detail here.

[0038] In addition, in order to ensure that the size of the electric drive axle assembly after integration is smaller, the electric control component 100 in the electric drive axle assembly can be connected to the radial outer side of the motor component 200. When the motor component 200 is arranged along the y direction, refer to Figures 3 to 5 The electric control assembly 100 can be connected to one side of the motor assembly 200 in the z direction. In this case, the z-direction dimension of the electric drive axle assembly is increased. Figures 6 to 8 The electric control component 100 can also be connected to one side of the motor component 200 in the x direction. In this case, the x-direction dimension of the electric drive axle assembly is increased. In practical applications, the side on which the electric control component 100 is set can be selected according to the reserved installation space. Due to its own structural characteristics, the space on the radial outer side of the motor component 200 is larger than the space on both ends of the axial direction. Therefore, connecting the electric control component 100 to one side of the radial direction of the motor component 200 can make good use of the space there, avoid occupying other unnecessary space, and avoid a large size along the extension direction (y direction) of the motor component 200.

[0039] In order to further prevent the electric control component 100 from having a significant impact on the size of the entire electric drive axle assembly, in the embodiment of the present disclosure, the length extension direction of the electric control component 100 can also be set to the extension direction of the first output shaft 211, so that the length of the electric control component 100 can use the axial dimension of the motor assembly 200, thereby reducing the impact of the length of the electric control component 100 on the overall size. It should be noted here that the length extension direction of the electric control component 100 is the dimension of the electric control component 100 in the longer direction among the dimensions in various directions, for example, Figure 2 The y direction is the length direction of the electronic control component 100 .

[0040] Reference Figure 1 and Figure 2 The motor assembly 200 may include a motor 210 and a motor housing 220. The electric control assembly 100 may be connected to the motor housing 220 and together with the motor housing 220 form a receiving cavity for accommodating the motor 210. Figure 2It can be seen that the motor housing 220 can be constructed as a structure with an opening on one side, and the shape and size of the opening can be adapted to the shape and size of the electric control component 100, so that the electric control component 100 can close the motor housing 220 after being connected to the opening, thereby accommodating the motor 210 in the closed accommodating cavity. In this embodiment, a partial structure of the electric control component 100 is used to enclose the accommodating cavity for accommodating the motor 210, which simplifies the structure while achieving integrated installation. In addition, the electric control component 100 is located next to the motor component 200, which can reduce noise radiation and improve NVH performance compared to installing the electric control component 100 next to the reducer component 300. Of course, the arrangement of the electric control component 100 next to the reducer component 300 is also within the protection scope of the present disclosure.

[0041] Continue to refer to Figure 1 and Figure 2 The reducer assembly 300 may include a reducer housing 330, which is formed with a cavity for accommodating the gear set 310 and the differential 320. The reducer housing 330 is connected to the axial (y-direction) side of the motor housing 220 and together with the motor housing 220, forms a receiving cavity for accommodating the motor 210. Figure 2 In the embodiment, an opening is formed at one end of the motor housing 220 along the y direction, and a part of the structure of the reducer housing 330 can be configured to close the opening of the end with a shape-matched shape, so that a part of the reducer housing 330 is used to enclose a housing cavity for accommodating the motor 210, which simplifies the structure while achieving integrated installation. A variety of interfaces can also be formed on the reducer housing 330 for installing components such as an oil pump and an oil cooler.

[0042] The electric drive axle assembly with such an integrated layout in the disclosed embodiment can achieve a volume density of the electric drive axle assembly of 15 kW / L to 25 kW / L, that is, within a limited space, such a layout can achieve a higher power of the electric drive axle assembly.

[0043] In one embodiment of the present disclosure, the size of the electric drive axle assembly along the first direction is 470mm-570mm, the size along the second direction is 250mm-270mm, and the size along the third direction is 303mm-343mm, and the first direction, the second direction and the third direction are configured as mutually orthogonal directions. It should be noted that the size of the electric drive axle assembly does not include the second output shaft 321 of the differential 320. In addition, it should be noted that the size of the electric drive axle assembly mentioned here is based on a group of electronic control components 100, motor components 200 and reducer components 300. Here, the first direction can be the extension direction of the first output shaft 211, for example, the y direction, and one of the second direction and the third direction can be the x direction, and the other can be the z direction. In the embodiment of the present disclosure, the size of the electric drive axle assembly will not be very large in a certain direction, which is more convenient for reasonable layout and can achieve a larger volume density.

[0044] In the disclosed embodiment, the electric drive power of the electric drive axle assembly can be configured to be 280kW to 380kW.

[0045] Reference Fig.11 In one embodiment, the motor assembly 200 and the reducer assembly 300 can be two groups respectively, and the electronic control assembly 100 can be one group. One group of electronic control components 100 can be connected to two groups of motor components 200 and two groups of reducer components 300 at the same time. For example, the electronic control component 100 can be set on the z-side of the motor assembly 200 and connected to the two motor assemblies 200 at the same time.

[0046] Reference Fig. 9 and Fig.10 In another embodiment, the number of the electric control components 100 can also be two groups, and the two groups of electric control components 100 are respectively connected to the two groups of motor components 200 and the two groups of reducer components 300 in a one-to-one correspondence. In this embodiment, the electric control component 100 can be arranged on the x-direction side of the motor component 200, or can also be arranged on the z-direction side of the motor component 200, and the two electric control components 100 are independent of each other.

[0047] According to a second aspect of an embodiment of the present disclosure, a vehicle is also provided, comprising the above-mentioned electric drive axle assembly and having all the beneficial effects of the above-mentioned electric drive axle assembly, which will not be described in detail here.

[0048] The vehicle may be a hybrid vehicle, a pure electric vehicle, or other electric-driven vehicles, and may be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0049] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0050] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electric drive axle assembly, characterized in that: It includes an electronic control component, a motor component and a reducer component that are integrated into one body, the reducer component includes a gear set and a differential, the gear set is used for transmission connection between the differential and the motor component, wherein the extension direction of the first output shaft of the motor component is different from the extension direction of the second output shaft of the differential.

2. The electric drive axle assembly according to claim 1, characterized in that: An extending direction of the first output shaft is perpendicular to an extending direction of the second output shaft.

3. The electric drive axle assembly according to claim 1, characterized in that: The gear set includes a hypoid gear, and the hypoid gear includes a driving gear and a driven gear. The driving gear is coaxially connected to the first output shaft, and the driven gear is coaxially connected to the second output shaft.

4. The electric drive axle assembly according to claim 1, characterized in that: The electric control component is connected to the radial outer side of the motor component, and the length extension direction of the electric control component is the extension direction of the first output shaft.

5. The electric drive axle assembly according to claim 4, characterized in that: The motor assembly includes a motor and a motor housing. The electric control assembly is connected to the motor housing and together with the motor housing, forms a receiving cavity for accommodating the motor.

6. The electric drive axle assembly according to claim 1 or 5, characterized in that: The reducer assembly includes a reducer housing, which is formed with a cavity for accommodating the gear set and the differential. The reducer housing is connected to one axial side of the motor housing and together with the motor housing, forms an accommodating cavity for accommodating the motor.

7. The electric drive axle assembly according to claim 1, characterized in that: The volume density of the electric drive axle assembly is 15 kW / L to 25 kW / L.

8. The electric drive axle assembly according to claim 7, characterized in that: The electric drive axle assembly has a dimension of 470 mm to 570 mm along a first direction, a dimension of 250 mm to 270 mm along a second direction, and a dimension of 303 mm to 343 mm along a third direction. The first direction, the second direction, and the third direction are configured to be orthogonal to each other.

9. The electric drive axle assembly according to claim 7 or 8, characterized in that: The electric drive power of the electric drive axle assembly is configured to be 280kW to 380kW.

10. The electric drive axle assembly according to claim 1, characterized in that: The motor assembly and the reducer assembly are respectively divided into two groups, Among them, the number of the electronic control components is one group, and one group of the electronic control components is connected to two groups of the motor components and two groups of the reducer components at the same time, or the number of the electronic control components is two groups, and the two groups of the electronic control components are respectively connected to the two groups of the motor components and the two groups of the reducer components in a one-to-one correspondence.

11. A vehicle, characterized in that: It comprises an electric drive axle assembly according to any one of claims 1-10.

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