CN119590197A

CN119590197A - Wheel hub motor wheel edge integrated structure, assembly method and automobile

Info

Publication number: CN119590197A
Application number: CN202411669029.9A
Authority: CN
Inventors: 万年; 罗凯杰; 刘翔飞; 张文斌; 黄帅
Original assignee: Dongfeng Motor Group Co Ltd
Current assignee: Dongfeng Motor Group Co Ltd
Priority date: 2024-11-21
Filing date: 2024-11-21
Publication date: 2025-03-11

Abstract

The present invention relates to the technical field of automobile component structure, and specifically refers to a wheel hub motor wheel edge integrated structure, assembly method and automobile. It includes a wheel rim and a wheel hub motor, wherein the wheel rim is a hollow spokeless annular structure, and a first connection structure is provided at one end of the wheel rim away from the vehicle body; the wheel hub motor includes an outer rotor shell; the outer rotor shell is sleeved in the wheel rim, and a second connection structure is provided at one end of the outer rotor shell away from the vehicle body, and the end of the outer rotor shell close to the vehicle body is fixedly connected to the suspension; the outer rotor shell is fixed in the wheel rim through the first connection structure and the second connection structure, so that the outer rotor shell and the end of the wheel rim away from the vehicle body are flush. The wheel hub motor wheel edge integrated structure of the present application is simple, easy to assemble and use, effectively improves the utilization rate of the internal space of the wheel rim, reduces the weight of the wheel assembly, and the space coordination between the wheel rim and the motor in the Y direction and the Z direction is more compact, which is convenient for the arrangement of the wheel hub motor and the suspension, and the vehicle handling performance is improved.

Description

Hub motor wheel rim integrated structure, assembly method and automobile

Technical Field

The invention relates to the technical field of automobile part structures, in particular to an integrated structure of a hub motor wheel rim, an assembly method and an automobile.

Background

The application range of the hub motor is mainly that of a small electric vehicle, such as an electric automobile, an electric bicycle, an electric scooter, a special vehicle and the like, but the existing hub motor has certain defects due to structural reasons, wherein the defects comprise but are not limited to space occupation ratio, load capacity, output reliability, working stability and the like, particularly in the aspect of space occupation ratio, most of space of a chassis is required to be occupied to meet the installation requirement of the hub motor, so that the installation space of a battery is too small, and the duration is greatly reduced.

In order to solve the above problems, there is proposed a claw-type automobile hub electric driving device according to the prior art, the device comprising a hub and an electric driving mechanism for powering the hub, and further comprising a claw-type transmission housing, a cover plate, a bearing position, a first hub bearing, a flange shaft, a reduction gear output shaft, a reduction mechanism and a nut, wherein the claw-type transmission housing is used as a supporting system of the claw-type automobile hub electric driving device, a housing chamber is formed between the claw-type transmission housing and the cover plate, the front end of the claw-type transmission housing is provided with a bearing position which is communicated with the housing chamber and has a through hole, the first hub bearing is mounted in the bearing position, a shaft sleeve portion of the flange shaft is sleeved with an inner ring of the first hub bearing through the through hole, the shaft sleeve portion of the flange shaft is hollow, the hollow portion forms a connecting shaft hole, a disc portion of the flange shaft is used for supporting and connecting with the hub, a spindle portion of the reduction gear output shaft is sleeved with the flange shaft, the reduction mechanism is disposed in the housing chamber, a gear portion of the reduction gear output shaft is in transmission connection with the reduction mechanism, the nut is mounted on the spindle portion of the reduction gear output shaft for axially connecting the flange shaft to the electric driving mechanism, and the flange shaft is connected to the driving mechanism. The device runs through hub center flange's structural layout through sheep's horn type transmission box body and electric drive mechanism, brake mechanism cooperation reduction gear output shaft, makes electric drive device possess better load capacity, can guarantee again that the device wholly possesses better durability, and can also make electric drive device's appearance miniaturized more, provides sufficient peripheral space, better satisfies suspension for the hub intensity of being connected with the automobile body, the maneuverability of car operation, electric drive device's operating efficiency and the security that the vehicle was driven obtain effectively promoting.

However, the device also has some problems that the wheel rim space is not fully utilized, the shaft sleeve part of the flange shaft head of the device penetrates through the through hole to be sleeved with the inner ring of the first hub bearing, namely, the connection and fixation are actually carried out at the inner side of the hub, and the connection position of the flange shaft head and the inner ring of the first hub bearing encroaches on part of the hub space, so that the parts such as a motor stator, a rotor, a bearing and the like are close to one side in a vehicle when the motor is installed, and the parts of the motor can greatly occupy the arrangement space of the chassis suspension, so that the chassis suspension is extremely difficult to arrange. Further improvement in the utilization of rim space is required.

Disclosure of Invention

The application aims to solve the defects of the background technology and provides a hub motor hub integrated structure, an assembly method and an automobile.

The technical proposal of the application is that the hub motor wheel integrated structure comprises,

The rim is of a hollow spoke-free annular structure, and a first connecting structure is arranged at one end, far away from the vehicle body, of the rim;

The wheel hub motor comprises an outer rotor shell, wherein the outer rotor shell is sleeved in the rim, a second connecting structure is arranged at one end of the outer rotor shell, which is far away from the vehicle body, and one end of the outer rotor shell, which is close to the vehicle body, is fixedly connected with the suspension;

the outer rotor shell is fixed in the rim through the first connecting structure and the second connecting structure, so that the outer rotor shell and one end of the rim, far away from the car body, are flush.

According to the hub motor hub integrated structure, the first connecting structure is located on the inner side of the circumference of one end, far away from the vehicle body, of the rim, the second connecting structure is located on the outer side of the circumference of one end, far away from the vehicle body, of the outer rotor shell, and the first connecting structure and the second connecting structure are integrally connected in the axial direction.

According to the hub motor hub integrated structure provided by the application, the first connecting structure is positioned at one side of the second connecting structure far away from the vehicle body.

According to the hub motor hub integrated structure, the first connecting structure comprises the flange, the flange is an annular structure located at one end, far away from a vehicle body, of the rim, the outer side of the circumference of the flange is connected with the rim, and a plurality of first screw holes are formed in the flange and are distributed at equal intervals along the circumferential direction.

The hub motor hub integrated structure comprises a plurality of lug plates arranged on the outer rotor shell and far away from the outer side of the circumference of one end of a vehicle body, wherein the lug plates are circumferentially equidistantly arranged on the outer rotor shell at intervals, are of plate-shaped structures extending along the radial direction, are provided with second screw holes, and are fixedly connected with a flange through bolts axially penetrating through the first screw holes and the second screw holes.

According to the hub motor hub integrated structure provided by the application, the end part of the bolt, which is positioned at one side of the flange, is provided with the riveting nut.

The hub motor wheel rim integrated structure comprises a stator shell, wherein one end, close to a vehicle body, of the stator shell is provided with a high-voltage wire harness interface, a low-voltage wire harness interface and a water cooling pipeline interface, the high-voltage wire harness interface is connected with a high-voltage wire harness, the low-voltage wire harness interface is connected with a low-voltage wire harness, the water cooling pipeline interface is connected with a cooling water pipe, and a fixing structure used for fixing the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe is arranged between the stator shell and a suspension frame.

According to the hub motor hub integrated structure provided by the application, the fixing structure comprises the front suspension fixing bracket for fixing the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the front suspension and the stator shell of the front wheel and the rear suspension fixing bracket for fixing the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the rear suspension and the stator shell of the rear wheel.

According to the hub motor hub integrated structure, the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the front suspension fixing brackets are provided with the expansion allowance which is suitable for wheel runout and steering, and the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the rear suspension fixing brackets are provided with the expansion allowance which is suitable for wheel runout.

The application also provides an assembly method of the hub motor hub integrated structure, which is used for assembling any of the hub motor hub integrated structures, and comprises the following steps of,

Inserting an outer rotor shell of the hub motor into a rim along the axial direction, so that the first connecting structure and the second connecting structure are attached and aligned;

And driving connecting bolts into the first connecting structure and the second connecting structure, and fixedly connecting the outer rotor shell and the rim into a whole.

According to the method for assembling the hub motor rim integrated structure, the outer rotor shell of the hub motor is axially inserted into the rim, and one end, provided with the second connecting structure, of the outer rotor shell is inserted into the rim from one end, close to the vehicle body, of the rim along the axial direction of the outer rotor shell.

According to the method for assembling the hub motor hub integrated structure, the first connecting structure and the second connecting structure are attached to the side, close to the vehicle body, of the flange of the first connecting structure, the outer rotor shell and the rim are rotated around the axis direction, and the first screw holes in the flange are aligned with the second screw holes in the flange in the axial direction.

According to the hub motor hub integrated structure provided by the application, the front suspension fixing support comprises a plurality of first high-voltage wire harness fixing supports, and the plurality of first high-voltage wire harness fixing supports are sequentially arranged at intervals along the extending direction of the front suspension high-voltage wire harness and are used for fixing the front suspension high-voltage wire harness with the steering knuckle and the vehicle body longitudinal beam in the front suspension.

According to the hub motor hub integrated structure provided by the application, the front suspension high-voltage wire harness between the steering knuckle and the two first high-voltage wire harness fixing brackets of the longitudinal beam of the vehicle body is of a bending structure with a telescopic allowance suitable for wheel runout and steering.

According to the hub motor hub integrated structure provided by the application, the front suspension fixing support comprises a plurality of first low-voltage wire harness fixing supports, and the plurality of first low-voltage wire harness fixing supports are sequentially arranged at intervals along the extending direction of the front suspension low-voltage wire harness and are used for fixing the front suspension low-voltage wire harness, the stator shell, the steering knuckle in the front suspension, the shock absorber and the vehicle body longitudinal beam.

According to the hub motor hub integrated structure provided by the application, the front suspension low-voltage wire harness between the vehicle body longitudinal beam and the two first low-voltage wire harness fixing brackets of the shock absorber is of a bending structure with a telescopic allowance suitable for wheel runout and steering.

According to the hub motor hub integrated structure provided by the application, the front suspension fixing support comprises a plurality of first water pipe fixing supports, and the first water pipe fixing supports are sequentially arranged at intervals along the extending direction of the front suspension cooling water pipe and are used for fixing the front suspension cooling water pipe with the steering knuckle and the front bracket in the front suspension.

According to the hub motor hub integrated structure provided by the application, the front suspension cooling water pipe between the steering knuckle and the two first water pipe fixing brackets of the front bracket is a bending structure with expansion allowance suitable for wheel runout and steering.

According to the hub motor hub integrated structure provided by the application, the rear suspension fixing support comprises a plurality of second high-voltage wire harness fixing supports, and the second high-voltage wire harness fixing supports are sequentially arranged at intervals along the extending direction of the rear suspension high-voltage wire harness and are used for fixing the rear suspension high-voltage wire harness with the joint head and the rear bracket in the rear suspension.

According to the hub motor hub integrated structure provided by the application, the rear suspension high-voltage wire harness between the joint head and the two second high-voltage wire harness fixing brackets of the rear bracket is of a bending structure with a telescopic allowance suitable for wheel runout.

According to the hub motor hub integrated structure provided by the application, the rear suspension fixing support comprises a plurality of second low-voltage wire harness fixing supports, and the second low-voltage wire harness fixing supports are sequentially arranged at intervals along the extending direction of the rear suspension low-voltage wire harness and are used for fixing the rear suspension low-voltage wire harness with the joint head and the rear bracket in the rear suspension.

According to the hub motor hub integrated structure provided by the application, the rear suspension low-voltage wire harness between the joint head and the two second low-voltage wire harness fixing brackets of the rear bracket is of a bending structure with a telescopic allowance suitable for wheel runout.

According to the hub motor hub integrated structure provided by the application, the rear suspension fixing support comprises a plurality of second water pipe fixing supports, and the second water pipe fixing supports are sequentially arranged at intervals along the extending direction of the cooling water pipe and are used for fixing the cooling water pipe of the rear suspension and the joint head in the rear suspension.

According to the hub motor hub integrated structure provided by the application, the rear suspension cooling water pipe between the joint head and the two second water pipe fixing brackets of the rear bracket is of a bending structure with a telescopic allowance suitable for wheel runout.

The application also provides an automobile, which is provided with any wheel hub motor wheel hub integrated structure.

The wheel rim has the advantages that 1, the wheel rim structure is a hollow spoke-free structure, and because the spoke structure is eliminated, the whole inner space of the wheel rim is enlarged, the outer rotor shell of the wheel hub motor can further extend into the inner side of the wheel rim, the weight of the wheel assembly is greatly reduced, and the utilization rate of the inner space of the wheel rim is improved; the outer rotor shell of the motor is closer to one end of the rim, which is far away from the vehicle body, the space occupied by one end of the rim, which is close to the vehicle body, is smaller, the design space between the wheel hub motor and the vehicle body suspension is more sufficient, the distance from the wheel center of the wheel to the suspension main pin is greatly reduced, and the stability of the whole vehicle is greatly improved;

2. The first connecting structure is positioned on the inner side of the circumference of one end of the rim, which is far away from the vehicle body, and the second connecting structure is positioned on the outer side of the circumference of one end of the outer rotor shell, which is far away from the vehicle body, namely, the connection and fixation of the outer rotor shell and the rim are performed at the circumference position of one end of the rim, which is far away from the vehicle body, the connecting structure does not occupy the space inside the rim, enough installation space is reserved in the rim, the arrangement of a hub motor is convenient, the hub motor can be furthest arranged at one end of the rim, which is far away from the vehicle body, the occupation of the wheel, which is close to the space of one end of the vehicle body, is furthest reduced, enough space is reserved for the hub motor and a suspension, and the connection and fixation prescription of the rim and the outer rotor shell is convenient for operation and assembly, so that the assembly efficiency is improved;

3. The first connecting structure is positioned at one side of the second connecting structure far away from the automobile body, so that the outer rotor shell can be directly inserted into the rim along the axial direction when the rim and the outer rotor shell are actually assembled, the assembly of the rim and the outer rotor shell becomes extremely convenient, the assembly of the rim and the outer rotor shell can not cause any damage to the interface structure on the outer rotor shell, and the whole operation is extremely simple;

4. the first connecting structure comprises the flange at one end of the rim, which is far away from the vehicle body, and the flange is of an annular structure, so that the whole structure is simple and is extremely convenient to process, the contact area of the outer rotor shell is increased due to the arrangement of the flange structure, and the tightness and stability of the connection between the outer rotor shell and the rim are increased;

5. The second connecting structure comprises a plurality of lug plates, the lug plates are simple in structure and are arranged on the outer side of the circumference of the end part of the outer rotor shell, the processing is convenient, the lug plates correspond to the flange, the lug plates can be quickly attached to the flange during actual assembly, the lug plates can be connected into a whole through tightening bolts, the whole structure is simple, and the assembly is extremely easy;

6. According to the application, the riveting nut is arranged on the outer side of the bolt, so that the exposed end part of the bolt can be protected by the riveting nut, and the tightness of the connection of the bolt, the rim and the outer rotor shell can be enhanced, and the bolt is ensured to be tightly fixed in the first screw hole and the second screw hole;

7. according to the application, the high-voltage wire harness interface, the low-voltage wire harness interface and the water-cooling pipeline interface are integrated on the stator shell, so that the subsequent installation and connection of wire harnesses and water pipes are facilitated, and the assembly efficiency of the hub motor rim structure is improved;

8. The wire harness and the water pipe related to the front suspension and the rear suspension respectively adopt different fixing modes, the targeted design can be set according to different functional requirements of the front suspension and the rear suspension, the wire harness and the water pipe can be ensured to be more suitable for a suspension structure, and the safety and the service life of the wire harness and the water pipe structure are improved;

9. The application aims at different functional requirements of the front suspension and the rear suspension, the wire harness and the cooling water pipe on the front suspension fixing bracket and the rear suspension fixing bracket are designed in a targeted manner, the wire harness and the cooling water pipe are reserved with telescopic allowance, so that the application can adapt to the wheel jump and steering of the front wheel, the wheel jump of the rear wheel can be adapted, the wire harness and the water pipe are not easy to damage, the service life is prolonged, and the action of the wheels is not disturbed;

10. The application also relates to an assembly method, the assembly method of the application is very simple, the assembly of rim and outer rotor shell is very efficient, the rim reserves enough installation and arrangement space for the outer rotor shell, the outer rotor shell can fully enter the inside of the rim and is fixed at one end of the rim far away from the vehicle body, and enough installation space is reserved for the hub motor and the suspension;

11. The outer rotor shell and the rim are assembled in a very simple mode, the outer rotor shell can be inserted into the rim from inside to outside, the assembly method is convenient for subsequent bolt tightening operation, meanwhile, the structure on the inner side of the outer rotor shell is not damaged, and the subsequent connection assembly operation is convenient;

12. The flange and the lug plate are assembled very simply and conveniently, the flange and the lug plate can be conveniently abutted and attached together, the first screw hole and the second screw hole are aligned and then are driven into bolts to connect the flange and the lug plate into a whole, and meanwhile, the flange and the lug plate are tightly attached to each other, so that the stability and the safety of the whole connecting structure can be enhanced;

13. The automobile is integrated with the hub motor wheel rim integrated structure, the space fit between the rim and the motor in the Y direction and the Z direction is more compact, the design space between the hub motor and the automobile body suspension is more sufficient, the distance from the wheel center to the suspension main pin is greatly reduced, and the automobile has good control performance.

The hub motor rim has the advantages of simple integrated structure, convenient assembly and use, effective improvement of the utilization rate of the inner space of the rim, reduction of the weight of the wheel assembly, more compact space matching of the rim and the motor in the Y direction and the Z direction, convenience in arrangement of the hub motor and the suspension, and improvement of the vehicle control performance.

Drawings

FIG. 1 is an axial view (on the side away from the vehicle body) of an in-wheel motor hub integrated structure of the present application;

FIG. 2 is an axial view (near the vehicle body side) of the hub motor rim integrated structure of the present application;

FIG. 3 is an exploded view (away from the body side) of the hub motor rim integrated structure of the present application;

FIG. 4 is an exploded view (near the vehicle body side) of the hub motor rim integrated structure of the present application;

FIG. 5 is a schematic view of the pipeline arrangement between the front wheel and the front suspension of the present application;

FIG. 6 is a schematic view of the layout structure of the front suspension high voltage wire harness of the present application;

FIG. 7 is a schematic diagram of the front suspension high voltage harness interface connection of the present application;

FIG. 8 is a schematic view of the front suspension high voltage harness and knuckle fixed connection of the present application;

FIG. 9 is a schematic view of the connection of the front suspension high voltage harness of the present application to the body rail;

FIG. 10 is a schematic view of the connection of the front suspension high voltage harness of the present application to the body rail;

FIG. 11 is a schematic view of the low voltage harness arrangement of the front suspension of the present application;

FIG. 12 is a schematic view of the connection of the front suspension low voltage harness to the stator housing of the present application;

FIG. 13 is a schematic view of the front suspension low voltage wiring harness and knuckle connection of the present application;

FIG. 14 is a schematic view of the front suspension low voltage harness and damper connection of the present application;

FIG. 15 is a schematic view of a first low voltage harness securing bracket of the front suspension low voltage harness of the present application;

FIG. 16 is a schematic view of the front suspension cooling water pipe arrangement of the present application;

FIG. 17 is a schematic view of the connection structure of the front suspension cooling water pipe and the knuckle according to the present application;

FIG. 18 is a schematic view of the front suspension cooling water pipe and knuckle connection structure of the present application (another view);

FIG. 19 is a schematic view of the arrangement of the pipeline between the rear wheel and the rear suspension of the present application;

FIG. 20 is a schematic view of the rear suspension high voltage harness arrangement of the present application;

FIG. 21 is a schematic view of the connection of the rear suspension high voltage harness to the articulation head of the present application;

FIG. 22 is a schematic view of the connection of the rear suspension high voltage harness to the rear bracket of the present application;

FIG. 23 is a schematic view of the rear suspension high voltage harness and rear bracket connection of the present application (another view);

FIG. 24 is a schematic view of the low voltage harness arrangement of the rear suspension of the present application;

FIG. 25 is a schematic view (another view) of the rear suspension low voltage harness arrangement of the present application;

FIG. 26 is a schematic illustration of the connection of the rear suspension low voltage harness to the articulation head in accordance with the present application;

FIG. 27 is a schematic illustration of the connection of the rear suspension low voltage harness to the spring arm of the present application;

FIG. 28 is a schematic view of the connection of the rear suspension low voltage harness to the rear bracket of the present application;

FIG. 29 is a schematic view of the rear suspension cooling water pipe arrangement of the present application;

FIG. 30 is a schematic view of the rear suspension cooling water tube and joint head connection of the present application;

wherein, 1-rim, 11-flange, 12-first screw hole;

2-an outer rotor shell, 21-an ear plate and 22-a second screw hole;

3-front suspension, 31-steering knuckle, 32-vehicle body longitudinal beam, 33-damper, 34-front bracket, 35-front suspension high-voltage wire harness, 36-front suspension low-voltage wire harness, 37-front suspension cooling water pipe, 38-first high-voltage wire harness fixing bracket, 39-first low-voltage wire harness fixing bracket and 310-first water pipe fixing bracket;

4-rear suspension, 41-joint head, 42-spring arm, 43-rear bracket, 44-rear suspension high-voltage wire harness, 45-rear suspension low-voltage wire harness, 46-rear suspension cooling water pipe, 47-second high-voltage wire harness fixing bracket, 48-second low-voltage wire harness fixing bracket and 49-second water pipe fixing bracket;

5-stator shell, 51-high voltage line interface, 52-low voltage line interface and 53-water cooling line interface.

Detailed Description

Embodiments of the present application are described in detail below, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The application will now be described in further detail with reference to the drawings and to specific examples.

The application relates to a hub motor rim integrated structure, in particular to a mounting structure of a rim and a hub motor, wherein the rim is of a spoke-free structure, the space for mounting the hub motor in the rim is larger, the hub motor is more convenient to mount in the rim, meanwhile, the hub motor can be mounted in the rim to be farther away from a vehicle body, under the condition that the wheel position is unchanged, the wheel rim integrated structure formed by the wheel rim and the wheel hub motor cannot occupy too much effective space on the inner side of the wheel rim, so that more sufficient assembly space is provided for arrangement of the wheel hub motor and the suspension, the wheel hub motor and the suspension are more convenient to arrange, the design space of the wheel hub motor and the vehicle body suspension is more sufficient, the distance from the wheel center to the suspension main pin is greatly reduced, and the stability of the whole vehicle is greatly improved.

Specifically, as shown in fig. 1-30, the hub motor rim integrated structure of the application comprises a rim 1 and a hub motor, wherein the rim 1 is of a hollow spoke-free annular structure, because the rim 1 is of an annular structure of a spoke-free structure, the weight of the rim 1 is extremely small, the weight of a wheel assembly is greatly reduced, and meanwhile, the inner space of the spoke-free rim 1 structure is larger, so that the hub motor is more convenient to install and arrange.

The hub motor comprises an outer rotor shell 2, the hub motor rim integrated structure mainly shows a connection structure of the hub motor and a rim 1, the hub motor comprises the outer rotor shell 2 and a stator shell 5, the outer rotor shell 2 is fixedly connected with the rim 1 and rotates together with a wheel, and the stator shell 5 is non-rotating and fixedly connected with a vehicle body suspension. The outer rotor housing 2 is sleeved inside the rim 1, that is, the inner space of the rim 1 is fully utilized to mount the outer rotor housing 2. One end of the outer rotor shell 2 far away from the automobile body is fixedly connected with the rim 1, and one end of the outer rotor shell 2 close to the automobile body is rotatably connected with the stator shell 5 around the axis.

The application is provided with a first connecting structure at one end of the rim 1 far away from the vehicle body, and a second connecting structure at one end of the outer rotor shell 2 far away from the vehicle body, wherein the first connecting structure and the second connecting structure are mutually corresponding, and the outer rotor shell 2 and the rim 1 are fixedly connected into a whole through the first connecting structure and the second connecting structure.

The outer rotor housing 2 is fixed in the rim 1 by a first connection structure and a second connection structure, so that the outer rotor housing 2 and one end of the rim 1 away from the vehicle body are flush.

In actual assembly, the hub motor hub integrated structure of the application inserts an outer rotor shell 2 of a hub motor into a rim 1 along the axial direction, so that a first connecting structure and a second connecting structure are bonded and aligned, and connecting bolts are driven into the first connecting structure and the second connecting structure to fixedly connect the outer rotor shell 2 with the rim 1 into a whole.

In some embodiments of the present application, the first connection structure and the second connection structure are optimized, specifically, as shown in fig. 1 to 4, the first connection structure is located on the inner side of the circumference of the end, far away from the vehicle body, of the rim 1, the second connection structure is located on the outer side of the circumference of the end, far away from the vehicle body, of the outer rotor housing 2, and the first connection structure and the second connection structure are integrally connected in the axial direction.

In order to maximally utilize the inner space of the rim 1, the first connection structure is designed at the inner side of the circumference of the rim 1 far away from one end of the vehicle body, so that the connection position of the rim 1 and the outer rotor shell 2 is at the inner side of the circumference of the rim 1 far away from one end of the vehicle body, and the invasion of the connection structure of the rim 1 and the outer rotor shell 2 to the inner space of the rim 1 is reduced to the greatest extent by the connection arrangement form. Meanwhile, the connecting structure is arranged at a position close to the inner side of the circumference of the end part, so that the assembly of the two assemblies is greatly facilitated.

In actual assembly, the end of the outer rotor housing 2 provided with the second connection structure is inserted into the rim 1 from the end of the rim 1 near the vehicle body in the axial direction of the outer rotor housing 2, so that the second connection structure is fitted together with the first connection structure in the axial direction.

The outer rotor case 2 is a cylindrical structure, and is assembled by inserting one end provided with a second connection structure into the rim 1 from one end of the rim 1 near the vehicle body in the axial direction, so that the second connection structure is bonded to the first connection structure in the axial direction.

Further, in this embodiment, the relative positions of the first connection structure and the second connection structure during assembly are limited, as shown in fig. 1 to 4, where the first connection structure is located at a side of the second connection structure away from the vehicle body.

Therefore, when the end of the outer rotor housing 2 provided with the second connecting structure is inserted into the rim 1 in the axial direction from the end of the rim 1 near the vehicle body, the end of the outer rotor housing 2 away from the vehicle body is not beyond the rim 1, and the second connecting structure on the outer rotor housing 2 is on the side of the rim 1 near the vehicle body. The outer rotor shell 2 utilizes the inner space of the rim 1 to the greatest extent but is not exposed to influence the use of the rim.

In a further embodiment of the present application, the specific structure of the first connection structure and the second connection structure is optimized, as shown in fig. 1 to 4, where the first connection structure of the present embodiment includes a flange 11, the flange 11 is an annular structure located at an end of the rim 1 away from the vehicle body, the outer side of the circumference of the flange 11 is connected with the rim 1, and a plurality of first screw holes 12 are formed in the flange 11 and are arranged at equal intervals along the circumferential direction. The second connection structure comprises a plurality of lug plates 21 arranged on the outer rotor shell 2 and far away from the outer side of the circumference of one end of the car body, the lug plates 21 are circumferentially equidistantly arranged on the outer rotor shell 2, the lug plates 21 are plate-shaped structures extending along the radial direction, second screw holes 22 are formed in the lug plates 21, and the lug plates 21 are fixedly connected with the flange 11 through bolts axially penetrating through the first screw holes 12 and the second screw holes 22.

The flange 11 and the ear plate 21 are of corresponding structures, and the side of the flange 11 facing the vehicle body is closely attached to the side of the ear plate 21 facing away from the vehicle body. The first screw holes 12 and the second screw holes 22 on the lug plate 21 which are arranged on the flange 11 at equal intervals along the circumferential direction are in one-to-one correspondence, and are fixedly connected into a whole through bolts penetrating through the first screw holes 12 and the second screw holes 22.

In actual assembly, one end of the outer rotor shell 2 provided with the lug plate 21 is inserted into the rim 1 from one end of the rim 1 close to the vehicle body along the axial direction of the outer rotor shell 2, the lug plate 21 and the flange 11 are attached together in the axial direction, the lug plate 21 is positioned on one side of the flange 11 facing the vehicle body, the outer rotor shell 2 and the rim 1 are rotated around the axial direction, the first screw hole 12 on the flange 11 is aligned with the second screw hole 22 on the lug plate 21 in the axial direction, bolts are driven into the first screw hole 12 and the second screw hole 22 aligned from one side of the rim 1 far from the vehicle body, and the sequence of driving the bolts is symmetrically driven by taking the axis of the rim 1 as the center until all the bolts are driven, and connection between the rim 1 and the outer rotor shell 2 is completed.

Further, in the present embodiment, a rivet nut is attached to an end of the bolt on the side of the flange 11. The riveting nut can protect the exposed end of the bolt on one hand, and can strengthen the connection tightness of the bolt, the rim 1 and the outer rotor shell 2 on the other hand, so that the bolt is tightly fixed in the first screw hole 12 and the second screw hole 22.

In other embodiments of the present application, the hub motor structure is optimized, specifically, as shown in fig. 2, 4,5 and 19, one end of the stator housing 5, which is close to the vehicle body, of the present embodiment is provided with a high-voltage harness interface 51, a low-voltage harness interface 52 and a water-cooling pipeline interface 53, the high-voltage harness interface 51 is connected with a high-voltage harness, one end of the high-voltage harness is connected with the high-voltage harness interface 51 on the stator housing 5, the other end of the high-voltage harness is connected with the vehicle-mounted MCU, the low-voltage harness interface 52 is connected with a low-voltage harness, one end of the low-voltage harness is connected with the low-voltage harness interface 52 on the stator housing 5, the other end of the low-voltage harness is connected with an in-vehicle communicator, the water-cooling pipeline interface 53 is connected with a cooling water pipe, one end of the cooling water pipe is connected with the water-cooling pipeline interface 53 on the stator housing 5, and the other end of the cooling pipe is connected with the radiator assembly or the charger water pipe assembly, and a fixing structure for fixing the high-voltage harness, the low-voltage harness and the cooling water pipe is provided between the stator housing 5 and the suspension.

When the stator housing 5 is installed facing one end of a vehicle body, the stator housing 5 and the vehicle body suspension are fixed, then a wire harness and a water pipe pipeline structure are sequentially connected, one end of a high-voltage wire harness is connected with a high-voltage wire harness interface 51 on the stator housing 5, the other end of the high-voltage wire harness is connected with a vehicle-mounted MCU, then the high-voltage wire harness is fixed by the fixing structure, shaking or friction with the ground in the using process is avoided, one end of a low-voltage wire harness is connected with a low-voltage wire harness interface 52 on the stator housing 5, the other end of the low-voltage wire harness is connected with a vehicle-mounted communicator, the same fixing structure is used for fixing the low-voltage wire harness, one end of a cooling water pipe is connected with a water cooling pipeline interface 53 on the stator housing 5, the other end of the cooling water pipe is connected with a radiator assembly or a charging machine water pipe assembly, and the connection of the stator housing 5 and the suspension, the wire harness and the water pipe is completed by the fixing structure.

The wheel assembly structure of the present embodiment for a vehicle is the same, that is, the stator housing 5 of the front wheel, the rear wheel and the rim 1 are the same, but the suspension structure connected to the stator housing 5 is different, and the suspension of the vehicle of the present embodiment is divided into two types, that is, the front suspension 3 and the rear suspension 4, considering that the front wheel of the vehicle needs to have a steering function and the rear wheel does not need to be steered. As shown in fig. 5 and 19, the front suspension 3 includes a knuckle 31 connected to the stator housing 5, a shock absorber 33, a body rail 32, and a front bracket 34 structure, and the rear suspension 4 includes an articulation head 41 fixedly connected to the stator housing 5, a rear body rail spring arm 42, and a rear bracket 43. In practical applications, the front suspension and the rear suspension also involve many other structural components, but other components besides the above components are not connected with the wire harness and the water pipe structure of the present case, and therefore are not considered in the scope of the present embodiment.

Since the front suspension 3 and the rear suspension 4 are different in function from each other and from the connection form of the stator housing 5, the fixing structure of the front wheel harness and the water pipe line of the present embodiment is different from the fixing structure of the rear wheel harness and the water pipe line. That is, the fixing structure of the present embodiment includes a front suspension fixing bracket for fixing the high-voltage wire harness, the low-voltage wire harness, and the cooling water pipe between the front suspension and the stator housing 5 of the front wheel, and a rear suspension fixing bracket for fixing the high-voltage wire harness, the low-voltage wire harness, and the cooling water pipe between the rear suspension and the stator housing 5 outside the rear wheel.

In a further embodiment of the present application, the front suspension fixing bracket is optimized, specifically, as shown in fig. 5 to 10, the front suspension fixing bracket includes a plurality of first high-voltage wire harness fixing brackets 38, and the plurality of first high-voltage wire harness fixing brackets 38 are sequentially arranged at intervals along the extending direction of the front suspension high-voltage wire harness 35, so as to fix the front suspension high-voltage wire harness 35 with the knuckle 31 and the body longitudinal beam 32 in the front suspension.

As shown in fig. 5 to 10, three first high-voltage harness fixing brackets 38 in this embodiment are respectively used for fixing the front suspension high-voltage harness 35 at the knuckle 31, fixing the front suspension high-voltage harness 35 at the front end position of the vehicle body longitudinal beam 32, and fixing the front suspension high-voltage harness 35 at the rear end position of the vehicle body longitudinal beam 32, that is, five fixing points corresponding to the front suspension high-voltage harness 35 are respectively the stator housing 5, the knuckle 31, the front end position of the vehicle body longitudinal beam 32, the rear end position of the vehicle body longitudinal beam 32, and the vehicle-mounted MCU (interface corresponding to the vehicle-mounted MCU at the front of the vehicle body), and the front suspension high-voltage harness 35 between the knuckle 31 and the stator housing 5 is very short, so that the structure is relatively stable and is not easy to shake; the front suspension high-voltage wire harness 35 between the knuckle 31 and the front end position of the vehicle body longitudinal beam 32 is relatively long, and the part of the front suspension high-voltage wire harness 35 extends approximately in the Y direction of the vehicle body, and needs to cope with wheel jump and steering of wheels, so that the front suspension high-voltage wire harness 35 between the knuckle 31 and the two first high-voltage wire harness fixing brackets 38 of the vehicle body longitudinal beam 32 in the embodiment is a bending structure with a telescopic allowance suitable for the wheel jump and steering, the problem of interference caused during steering and wheel jump can be avoided by the telescopic allowance, the front suspension high-voltage wire harness 35 between the front end position of the vehicle body longitudinal beam 32 and the rear end position of the vehicle body longitudinal beam 32 is approximately arranged along the X direction of the vehicle body, the part of the front suspension high-voltage wire harness 35 does not participate in the wheel jump and steering process, is arranged along the vehicle body longitudinal beam 32, and is directly fixed, the front suspension high-voltage wire harness 35 between the rear end position of the vehicle body longitudinal beam 32 and the vehicle-mounted MCU is relatively short, and has a stable structure, shaking is not easy to occur.

The first high-voltage harness fixing bracket 38 of the present embodiment is a band, a buckle, or another type of structure, and may have a function of fixing the front suspension high-voltage harness 35 to the knuckle 31, the front end position of the vehicle body side member 32, or the vehicle body side member 32, as long as the function of fixing the front suspension high-voltage harness 35 can be satisfied.

The front suspension fixing bracket includes a plurality of first low-voltage harness fixing brackets 39, as shown in fig. 11 to 15, and the plurality of first low-voltage harness fixing brackets 39 are sequentially arranged at intervals along the extending direction of the low-voltage harness, and are used for fixing the front suspension low-voltage harness 36 with the stator housing 5 and the knuckle 31, the damper 33 and the body longitudinal beam 32 in the front suspension.

As shown in fig. 11 to 15, the front suspension low-voltage harness 36 of the present embodiment is longer, and five first low-voltage harness fixing brackets 39 are provided, which are respectively used for fixing the front suspension low-voltage harness 36 to the stator housing 5, fixing the front suspension low-voltage harness 36 to the knuckle 31, fixing the front suspension low-voltage harness 36 to the damper 33, fixing the front suspension low-voltage harness 36 to the front end position of the vehicle body longitudinal beam 32, and fixing the front suspension low-voltage harness 36 to the rear end position of the vehicle body longitudinal beam 32, where the first low-voltage harness fixing brackets 39 may adopt a snap-in structure, that is, a snap-in structure is reserved at the front end positions of the stator housing 5, the knuckle 31, the damper 33, the vehicle body longitudinal beam 32 and the rear end position of the vehicle body longitudinal beam 32, and then, when the front suspension low-voltage harness 36 is installed, the snap-in structure on the front suspension low-voltage harness 36 is directly fixed to the corresponding snap-in, that is able to complete the fixing of the front suspension low-voltage harness 36.

For the front suspension low voltage wire harness 36, the front suspension low voltage wire harness 36 between the low voltage wire harness interface 52 on the front wheel stator housing 5 and the first low voltage wire harness fixing bracket 39 on the stator housing 5 is relatively short, the fixing on the stator housing 5 is extremely stable, and therefore no special design is required, the front suspension low voltage wire harness 36 between the first low voltage wire harness fixing bracket 39 on the front end position of the vehicle body longitudinal beam 32 and the first low voltage wire harness fixing bracket 39 on the shock absorber 33 is relatively long, and needs to adapt to wheel jump and steering, so that the front suspension low voltage wire harness 36 between the front end position of the vehicle body longitudinal beam 32 and the two first low voltage wire harness fixing brackets 39 of the shock absorber 33 is a bending structure with a telescopic allowance adapting to wheel jump and steering, the front suspension low voltage wire harness 36 between the first low voltage wire harness fixing bracket 39 on the shock absorber 33 and the vehicle interior communicator is fixed by a plurality of first low voltage wire harness fixing brackets 39, and the front suspension low voltage wire harness 36 does not participate in the process of wheel jump and steering, and no other arrangement is required.

The arrangement of the front suspension high-voltage harness 35 and the front suspension low-voltage harness 36 of the present embodiment is divided in position, and the front suspension high-voltage harness 35 is directly connected from the stator housing 5 to the knuckle 31, then arranged along the vehicle body side member 32, and finally connected to the vehicle-mounted MCU. The front suspension low-voltage wire harness 36 is fixed on the stator housing 5, then connected to the knuckle 31, then connected to the shock absorber 33, then arranged along the body side member 32, and finally connected to the in-vehicle communicator. In the region where the wheel runout and steering are accommodated, the front suspension high-voltage wire harness 35 and the front suspension low-voltage wire harness 36 are separated in the Z-direction, and the front suspension high-voltage wire harness 35 between the knuckle 31 and the front end position of the body side member 32 and the front suspension low-voltage wire harness 36 between the knuckle 31 and the damper 33 are isolated from each other in the Z-direction, and the problem of winding does not occur.

The front suspension fixing bracket of the present embodiment includes a plurality of first water pipe fixing brackets 310, and the plurality of first water pipe fixing brackets 310 are sequentially arranged at intervals along the extending direction of the cooling water pipe for fixing the front suspension cooling water pipe 37 with the knuckle 31 and the front bracket 34 in the front suspension.

As shown in fig. 16 to 18, two first water pipe fixing brackets 310 are respectively used for fixing the front suspension cooling water pipe 37 to the knuckle 31 and the cooling water pipe to the front bracket 34, one end of the front suspension cooling water pipe 37 is connected with the water cooling pipeline interface 53 of the stator housing 5, then is fixed to the knuckle 31 through one first water pipe fixing bracket 310, is fixed to the front bracket 34 through the other first water pipe fixing bracket 310, and finally is connected to the radiator of the vehicle body.

The front suspension cooling water pipe 37 between the first water pipe fixing bracket 310 on the steering knuckle 31 and the water cooling pipeline interface 53 is short, so that the front suspension cooling water pipe 37 between the first water pipe fixing bracket 310 on the steering knuckle 31 and the first water pipe fixing bracket 310 on the front bracket 34 is long, is approximately arranged along the Y direction of the vehicle body, and needs to participate in wheel jump and steering of wheels, so that the front suspension cooling water pipe 37 between the steering knuckle 31 and the two first water pipe fixing brackets 310 of the front bracket 34 is of a bending structure with expansion allowance suitable for wheel jump and steering, and the front suspension cooling water pipe 37 between the first water pipe fixing bracket 310 of the front bracket 34 and the radiator does not participate in wheel jump and steering, so that the front suspension cooling water pipe 37 is directly and fixedly mounted.

That is, the front suspension high-voltage harness 35, the front suspension low-voltage harness 36, and the front suspension cooling water pipe 37 of the present embodiment are fixedly connected to the stator housing 5, the knuckle 31, and the front suspension high-voltage harness 35, the front suspension low-voltage harness 36, and the front suspension cooling water pipe 37 are separated in the Z-direction for the area where the winding interference easily occurs, so that the problem of winding does not occur. Specifically, the front suspension high-voltage wire harness between the knuckle 31 and the two first high-voltage wire harness fixing brackets 38 at the front end of the vehicle body side member 32, the front suspension cooling water pipe between the knuckle 31 and the two first water pipe fixing brackets 310 of the front bracket 34, and the front suspension low-voltage wire harness between the front end of the vehicle body side member 32 and the two first low-voltage wire harness fixing brackets 39 of the damper 33 are arranged at intervals in the Z direction.

The first water pipe fixing support 310 of this embodiment may adopt a buckle structure, and by providing buckle structures on the knuckle 31 and the front bracket 34, corresponding buckles are installed on the front suspension cooling water pipe 37, and then when the front suspension cooling water pipe 37 is installed, the buckles on the front suspension cooling water pipe 37 are directly buckled to the buckle structures on the knuckle 31 and the front bracket 34, so that the front suspension cooling water pipe 37 and the knuckle 31 and the front bracket 34 can be fixed.

In practical application, the structures of the first high-voltage harness fixing bracket 38, the first low-voltage harness fixing bracket 39 and the first water pipe fixing bracket 310 are not limited, as long as the corresponding requirements can be met.

In other embodiments of the present application, the rear suspension fixing bracket is optimized, specifically, as shown in fig. 19 to 23, the rear suspension fixing bracket includes a plurality of second high voltage wire harness fixing brackets 47, and the plurality of second high voltage wire harness fixing brackets 47 are sequentially spaced along the extending direction of the rear suspension high voltage wire harness 44, for fixing the rear suspension high voltage wire harness 44 to the joint head 41 and the rear bracket 43 in the rear suspension.

As shown in fig. 19 to 23, two second high-voltage harness fixing brackets 47 are respectively used for fixing the rear suspension high-voltage harness 44 on the joint head 41 and fixing the rear suspension high-voltage harness 44 on the rear bracket 43, that is, four fixing points are respectively corresponding to the stator housing 5, the joint head 41, the rear bracket 43 and the vehicle-mounted MCU (interface corresponding to the vehicle-mounted MCU at the rear part of the vehicle body), the rear suspension high-voltage harness 44 between the joint head 41 and the stator housing 5 is very short, the structure is relatively stable and is not easy to shake, the rear suspension high-voltage harness 44 between the joint head 41 and the rear bracket 43 is relatively long, and the rear suspension high-voltage harness 44 is approximately extended in the Y direction of the vehicle body and needs to cope with wheel jumping, so that the rear suspension high-voltage harness 44 between the two second high-voltage harness fixing brackets 47 on the joint head 41 and the rear bracket 43 in the embodiment is of a telescopic structure which leaves a telescopic margin to adapt to the wheel jumping, the problem that the rear suspension high-voltage harness 44 between the joint head 41 and the vehicle-mounted MCU is not easy to shake can be avoided, and the rear suspension high-voltage harness 44 between the joint head 41 and the rear bracket 43 is not easy to shake.

The second high-voltage harness fixing bracket 47 of the present embodiment is a band, a buckle, or another type of structure, as long as the function of fixing the rear suspension high-voltage harness 44 can be satisfied, and the function of fixing the rear suspension high-voltage harness 44 to the joint head 41 and the rear bracket 43 can be provided.

The rear suspension fixing bracket of the present embodiment includes a plurality of second low-voltage harness fixing brackets 48, and the plurality of second low-voltage harness fixing brackets 48 are sequentially arranged at intervals along the extending direction of the rear suspension low-voltage harness 45 for fixing the rear suspension low-voltage harness 45 with the joint head 41 and the rear bracket 43 in the rear suspension.

As shown in fig. 24 to 28, the rear suspension low-voltage harness 45 of the present embodiment is longer than the rear suspension high-voltage harness 44, and three second low-voltage harness fixing brackets 48 are provided, which are respectively used for fixing the rear suspension low-voltage harness 45 to the joint head 41, fixing the low-voltage harness to the spring arm 42, and fixing the rear suspension low-voltage harness 45 to the rear bracket 43, and the second low-voltage harness fixing brackets 48 can adopt a fastening structure, that is, a fastening structure is reserved on the joint head 41, the spring arm 42, and the rear bracket 43, and then when the rear suspension low-voltage harness 45 is installed, the fastening structure on the rear suspension low-voltage harness 45 is directly fixed into the corresponding fastening, so that the fixing of the rear suspension low-voltage harness 45 can be completed.

For the rear suspension low-voltage wire harness 45, the rear suspension low-voltage wire harness 45 between the low-voltage wire harness interface 52 on the rear wheel stator housing 5 and the second low-voltage wire harness fixing bracket 48 on the joint head 41 is relatively short, the fixing on the stator housing 5 is extremely stable, and therefore no special design is needed, the rear suspension low-voltage wire harness 45 between the second low-voltage wire harness fixing bracket 48 on the joint head 41 and the second low-voltage wire harness fixing bracket 48 on the spring arm 42 is relatively long, and needs to adapt to wheel hop, so that the rear suspension low-voltage wire harness 45 between the joint head 41 and the second low-voltage wire harness fixing bracket 48 on the spring arm 42 is of a bending structure with a telescopic allowance for adapting to wheel hop, the rear suspension low-voltage wire harness 45 between the second low-voltage wire harness fixing bracket 48 on the spring arm 42 and the in-vehicle communicator is fixed by one second low-voltage wire harness fixing bracket 48, and the part of the rear suspension low-voltage wire harness 45 does not participate in the adaptation process of wheel hop, and therefore no other arrangement is needed.

The arrangement of the rear suspension high-voltage harness 44 and the rear suspension low-voltage harness 45 in this embodiment is divided in position, the rear suspension high-voltage harness 44 is directly connected from the stator housing 5 to the joint head 41 and then to the rear bracket 43, while the rear suspension low-voltage harness 45 in this embodiment is led out from the stator housing 5 and then connected to the joint head 41 and then to the spring arm 42 and finally to the rear bracket 43, the rear suspension low-voltage harness 45 between the joint head 41 and the rear bracket 43 is transited by the second low-voltage harness fixing bracket 48 on the spring arm 42, the connection of the rear suspension low-voltage harness 45 and the rear bracket 43 is arranged at intervals in the X direction, and the rear suspension low-voltage harness 44 and the rear bracket 43 are connected, because only the wheel hop of the rear wheel of the vehicle does not involve steering, the rear suspension low-voltage harness 45 and the rear suspension high-voltage harness 44 can only generate relative movement in the Z direction, and by dividing in the X direction, the rear suspension low-voltage harness 45 and the rear suspension low-voltage harness 44 between the joint head 41 and the rear bracket 43 are not interfered by the division in the X direction.

The rear suspension fixing bracket of the present embodiment includes a plurality of second water pipe fixing brackets 49, and the plurality of second water pipe fixing brackets 49 are sequentially arranged at intervals along the extending direction of the rear suspension cooling water pipe 46 for fixing the rear suspension cooling water pipe 46 with the joint head 41 in the rear suspension.

As shown in fig. 29 to 30, two second water pipe fixing brackets 49 are provided for fixing the rear suspension cooling water pipe 46 to the joint head 41, one end of the rear suspension cooling water pipe 46 is connected to the water-cooled pipe connection 53 of the stator housing 5 of the rear suspension wheel, and then is fixed to the joint head 41 through the second water pipe fixing brackets 49 and finally connected to the motor water pipe assembly of the vehicle body.

The rear suspension cooling water pipe 46 between the second water pipe fixing bracket 49 on the joint head 41 and the water cooling pipeline interface 53 is short, so that the rear suspension cooling water pipe 46 between the second water pipe fixing bracket 49 on the joint head 41 and the second water pipe fixing bracket 49 on the rear bracket 43 is long and is approximately arranged along the Y direction of the vehicle body, and needs to participate in wheel jump, so that the rear suspension cooling water pipe 46 between the joint head 41 and the two second water pipe fixing brackets 49 of the rear bracket 43 is of a bending structure with expansion allowance suitable for the wheel jump, and the rear suspension cooling water pipe 46 between the second water pipe fixing bracket 49 of the rear bracket 43 and the motor water pipe assembly does not participate in the wheel jump adaptation, so that the rear suspension cooling water pipe 46 is directly and fixedly installed.

That is, the rear suspension high-pressure harness 44, the rear suspension low-pressure harness 45, and the rear suspension cooling water pipe 46 of the present embodiment are fixedly connected to the stator housing 5, the joint head 41, and for the area where the winding interference easily occurs, the rear suspension high-pressure harness 44, the rear suspension low-pressure harness 45, and the rear suspension cooling water pipe 46 are partitioned in the X-direction, specifically, the rear suspension high-pressure harness between the joint head 41 and the two second high-pressure harness fixing brackets 47 of the rear bracket 43, the rear suspension low-pressure harness between the joint head 41 and the two second low-pressure harness fixing brackets 48 of the spring arm 42, and the rear suspension cooling water pipe between the joint head 41 and the two second water pipe fixing brackets 49 of the rear bracket 43 are arranged at intervals in the X-direction, so that the problem of mutual winding does not occur.

The second water pipe fixing bracket 49 of this embodiment may adopt a buckle structure, and by providing buckle structures on the joint head 41 and the rear bracket 43, corresponding buckles are installed on the rear suspension cooling water pipe 46, and then when the rear suspension cooling water pipe 46 is installed, the buckles on the rear suspension cooling water pipe 46 are directly buckled to the buckle structures on the joint head 41, so that the fixing of the rear suspension cooling water pipe 46 and the joint head 41 can be completed.

In practical application, the structure of the second high-voltage harness fixing bracket 47, the second low-voltage harness fixing bracket 48 and the second water pipe fixing bracket 49 is not limited, as long as the corresponding requirements can be met.

Inserting one end of an outer rotor shell 2 provided with an ear plate 21 into a rim 1 along the axial direction of the outer rotor shell 2 from one end of the rim 1 close to a vehicle body, so that the ear plate 21 and a flange 11 are attached together in the axial direction, and the ear plate 21 is positioned on one side of the flange 11 facing the vehicle body; the outer rotor shell 2 and the rim 1 rotate around the axial direction, so that the first screw hole 12 on the flange 11 and the second screw hole 22 on the lug plate 21 are aligned in the axial direction, bolts are driven into the first screw hole 12 and the second screw hole 22 which are aligned from the side, far away from the vehicle body, of the rim 1, and the sequence of driving the bolts is symmetrically driven into the rim 1 by taking the axis of the rim 1 as the center until after all the bolts are driven into, and the fixed connection between the rim 1 and the outer rotor shell 2 is completed;

the stator shell 5 and the suspension are installed, the stator shell 5 of the front wheel and the front suspension are respectively and fixedly connected, and the stator shell 5 of the rear wheel and the rear suspension are fixedly connected;

Assembling a front suspension high-voltage wire harness and a water pipe, connecting one end of the front suspension high-voltage wire harness 35 with a high-voltage wire harness interface 51 of a stator shell 5 of a front wheel, sequentially fixing the front suspension high-voltage wire harness 35 at the front end positions of a steering knuckle 31, a vehicle body longitudinal beam 32 and the rear end positions of the vehicle body longitudinal beam 32 by using a plurality of first high-voltage wire harness fixing brackets 38, inserting the end part of the front suspension high-voltage wire harness 35 into a vehicle-mounted MCU, and arranging the front suspension high-voltage wire harness 35 between the steering knuckle 31 and the two first high-voltage wire harness fixing brackets 38 of the vehicle body longitudinal beam 32 into a bending structure with expansion allowance suitable for wheel runout and steering when the first high-voltage wire harness fixing brackets 38 are used for fixing the front suspension high-voltage wire harness 35;

connecting one end of the front suspension low-voltage wire harness 36 with the low-voltage wire harness interface 52 of the stator housing 5 of the front wheel, sequentially fixing the front suspension low-voltage wire harness 36 at the stator housing 5, the knuckle 31, the damper 33, the front end position of the body longitudinal beam 32, and the rear end position of the body longitudinal beam 32 by using a plurality of first low-voltage wire harness fixing brackets 39, and finally inserting the end of the front suspension low-voltage wire harness 36 into the vehicle-mounted communicator, and arranging the front suspension low-voltage wire harness 36 between the front end position of the body longitudinal beam 32 and the two first low-voltage wire harness fixing brackets 39 of the damper 33 into a bending structure with a telescopic allowance suitable for wheel runout and steering when fixing the front suspension low-voltage wire harness 36 by using the first low-voltage wire harness fixing brackets 39;

Connecting one end of a front suspension cooling water pipe 37 with a water cooling pipeline interface 53 of a stator shell 5 of a front wheel, sequentially fixing the front suspension cooling water pipe 37 on a steering knuckle 31 and a front bracket 34 by using a plurality of first water pipe fixing brackets 310, finally inserting the end of the front suspension cooling water pipe 37 into a car body radiator, and arranging the front suspension cooling water pipe 37 between the steering knuckle 31 and the two first water pipe fixing brackets 310 of the front bracket 34 into a bending structure with a telescopic allowance suitable for wheel runout and steering when fixing the front suspension cooling water pipe 37 by using the first water pipe fixing brackets 310;

assembling a rear suspension wire harness and a water pipe, connecting one end of a rear suspension high-voltage wire harness 44 with a high-voltage wire harness interface 51 of a stator shell 5 of a rear wheel, sequentially fixing the rear suspension high-voltage wire harness 44 on a joint head 41 and a rear bracket 43 by using a plurality of second high-voltage wire harness fixing brackets 47, and finally inserting the end of the rear suspension high-voltage wire harness 44 into a vehicle-mounted MCU, and arranging the rear suspension high-voltage wire harness 44 between the two second high-voltage wire harness fixing brackets 47 of the joint head 41 and the rear bracket 43 into a bending structure with a telescopic allowance suitable for wheel runout when the second high-voltage wire harness fixing brackets 47 are used for fixing the rear suspension high-voltage wire harness 44;

Connecting one end of the rear suspension low-voltage harness 45 with a low-voltage harness interface 52 of a stator housing 5 of the rear wheel, sequentially fixing the rear suspension low-voltage harness 45 on the joint head 41, the spring arm 42 and the rear bracket 43 by using a plurality of second low-voltage harness fixing brackets 48, and finally inserting the end of the rear suspension low-voltage harness 45 into a vehicle-mounted communicator, and arranging the rear suspension low-voltage harness 45 between the two second low-voltage harness fixing brackets 48 of the joint head 41 and the spring arm 42 into a bending structure with a telescopic allowance suitable for wheel runout when the second low-voltage harness fixing brackets 48 are used for fixing the rear suspension low-voltage harness 45;

Connecting one end of the rear suspension cooling water pipe 46 with a water cooling pipeline interface 53 of the stator housing 5 of the rear wheel, fixing the rear suspension cooling water pipe 46 on the joint head 41 by using a plurality of second water pipe fixing brackets 49, finally inserting the end of the rear suspension cooling water pipe 46 into the motor water pipe assembly, and arranging the rear suspension cooling water pipe 46 between the joint head 41 and the two second water pipe fixing brackets 49 of the rear bracket 43 into a bending structure with a telescopic allowance suitable for wheel runout when fixing the rear suspension cooling water pipe 46 by using the second water pipe fixing brackets 49;

the assembly of the hub motor with the rim 1, the suspension, the wire harness and the pipe structure is completed.

The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims

1. A hub motor hub integrated structure is characterized by comprising,

The wheel rim (1) is of a hollow spoke-free annular structure, and a first connecting structure is arranged at one end, far away from the vehicle body, of the wheel rim (1);

the wheel hub motor comprises an outer rotor shell (2), wherein the outer rotor shell (2) is sleeved in the rim (1), a second connecting structure is arranged at one end, far away from the vehicle body, of the outer rotor shell (2), and one end, close to the vehicle body, of the outer rotor shell (2) is fixedly connected with the suspension;

The outer rotor shell (2) is fixed in the rim (1) through the first connecting structure and the second connecting structure, so that the outer rotor shell (2) and one end of the rim (1) far away from the automobile body are flush.

2. A hub motor rim integrated structure as set forth in claim 1, wherein said first connection structure is located on the inner side of the circumference of the rim (1) at the end far from the vehicle body, said second connection structure is located on the outer side of the circumference of the outer rotor housing (2) at the end far from the vehicle body, and said first connection structure and said second connection structure are integrally connected in the axial direction.

3. A hub motor rim integrated structure as set forth in claim 2, wherein said first connection structure is located on a side of the second connection structure remote from the vehicle body.

4. A hub motor rim integrated structure according to claim 3, wherein the first connecting structure comprises a flange (11), the flange (11) is an annular structure positioned at one end of the rim (1) far away from the vehicle body, the outer side of the circumference of the flange (11) is connected with the rim (1), and a plurality of first screw holes (12) are formed in the flange (11) and are equidistantly arranged along the circumference.

5. The hub motor rim integrated structure of claim 4, wherein the second connecting structure comprises a plurality of lug plates (13) arranged on the outer rotor shell (2) and far away from the outer side of the circumference of one end of the car body, the lug plates (13) are circumferentially equidistantly arranged on the outer rotor shell (2), the lug plates (13) are plate-shaped structures extending along the radial direction, second screw holes (22) are formed in the lug plates (13), and the lug plates (13) are fixedly connected with the flange (11) through bolts axially penetrating through the first screw holes (12) and the second screw holes (22).

6. A hub motor rim integrated structure according to claim 5, wherein the end of the bolt on one side of the flange (11) is provided with a rivet nut.

7. The hub motor hub integrated structure of claim 1, further comprising a stator shell (5), wherein a high-voltage wire harness interface (51), a low-voltage wire harness interface (52) and a water cooling pipeline interface (53) are arranged at one end, close to a vehicle body, of the stator shell (5), a high-voltage wire harness is connected to the high-voltage wire harness interface (51), a low-voltage wire harness is connected to the low-voltage wire harness interface (52), a cooling water pipe is connected to the water cooling pipeline interface (53), and a fixing structure for fixing the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe is arranged between the stator shell (5) and a suspension.

8. A hub motor rim integrated structure according to claim 7, wherein the fixing structure includes a front suspension fixing bracket for fixing a high-voltage wire harness, a low-voltage wire harness and a cooling water pipe between the front suspension and a stator housing (5) of the front wheel, and a rear suspension fixing bracket for fixing a high-voltage wire harness, a low-voltage wire harness and a cooling water pipe between the rear suspension and a stator housing (5) of the rear wheel.

9. The hub motor rim integrated structure of claim 8, wherein the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the front suspension fixing support frames are provided with expansion allowance which is suitable for wheel runout and steering, and the high-voltage wire harness, the low-voltage wire harness and the cooling water pipe between the rear suspension fixing support frames are provided with expansion allowance which is suitable for wheel runout.

10. A method for assembling a hub motor hub integrated structure is characterized in that the method is used for assembling any one of the hub motor hub integrated structures according to claims 1-9, and comprises the steps of,

An outer rotor shell (2) of the hub motor is axially inserted into a rim (1), so that the first connecting structure and the second connecting structure are attached and aligned;

And connecting bolts are driven into the first connecting structure and the second connecting structure, and the outer rotor shell (2) and the rim (1) are fixedly connected into a whole.

11. A hub motor rim integrated structure assembling method according to claim 10, wherein the method of inserting the outer rotor housing (2) of the hub motor into the rim (1) in the axial direction comprises inserting an end of the outer rotor housing (2) provided with the second connection structure into the rim (1) from an end of the rim (1) close to the vehicle body in the axial direction of the outer rotor housing (2).

12. A hub motor rim integration structure assembling method according to claim 10 or 11, wherein the fitting alignment of the first connecting structure and the second connecting structure comprises fitting the lug plate (13) in the second connecting structure to one side of the flange (11) of the first connecting structure close to the vehicle body, rotating the outer rotor housing (2) and the rim (1) around the axial direction, and aligning the first screw hole (12) on the flange (11) and the second screw hole (22) on the lug plate (13) in the axial direction.

13. An automobile is characterized in that the automobile is provided with any one of the hub motor wheel-side integrated structures as claimed in claims 1-9.