Hub motor wheel edge integrated structure, assembling method and automobile

Abstract

The invention relates to the technical field of automobile part structures, in particular to a hub motor wheel edge integration structure, an assembling method and an automobile. Comprising a rim and a hub motor, the rim is of a hollow spoke-free annular structure, and a first connecting structure is arranged at the end, away from a vehicle body, of the rim; the hub motor comprises an outer rotor shell; the outer rotor shell is sleeved with the rim, a second connecting structure is arranged at the end, away from the vehicle body, of the outer rotor shell, and the end, close to the vehicle body, of the outer rotor shell 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 is flush with the end, away from the vehicle body, of the rim. The hub motor wheel edge integration is simple in structure and convenient to assemble and use, the utilization rate of the inner space of the rim is effectively increased, the weight of a wheel assembly is reduced, space matching of the rim and the motor in the Y direction and the Z direction is more compact, arrangement of the hub motor and a suspension is facilitated, and the vehicle control performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component structures, and in particular to a hub motor wheel rim integrated structure, an assembly method and an automobile. Background Art

[0002] The application scope of hub motors is mainly small electric vehicles, such as electric cars, electric bicycles, electric scooters, and special vehicles. However, due to structural reasons, existing hub motors still have certain defects. These defects include but are not limited to space share, load capacity, output reliability, and working stability. In particular, in terms of space share, most of the chassis space needs to be occupied to meet the installation requirements of the hub motor, resulting in too small battery installation space, which greatly reduces the battery life.

[0003] In order to solve the above problems, the prior art currently proposes a ram-horn type automobile wheel hub electric drive device, which includes a wheel hub and an electric drive mechanism for providing power to the wheel hub, and also includes a ram-horn type transmission box, a cover plate, a bearing seat, a first hub bearing, a flange shaft head, a reduction gear output shaft, a reduction mechanism and a nut. The ram-horn type transmission box is used as a support system for the ram-horn type automobile wheel hub electric drive device. A accommodating chamber is formed between the ram-horn type transmission box and the cover plate. A bearing seat communicating with the accommodating chamber and having a through hole is provided at the front end of the ram-horn type transmission box. The first hub bearing is installed in the bearing seat. The sleeve of the flange shaft head passes through the through hole and is sleeved with the inner ring of the first hub bearing. The sleeve of the flange shaft head is hollow, and the hollow part forms a connecting shaft hole. The disc of the flange shaft head is used to connect with the hub support. The main shaft end of the reduction gear output shaft passes through the connecting shaft hole and is sleeved with the flange shaft head. The reduction mechanism is arranged in the accommodating chamber, and the gear part of the reduction gear output shaft is connected to the reduction mechanism by transmission. The nut is installed on the main shaft end of the reduction gear output shaft, which is used to axially lock the flange shaft head. The electric drive mechanism is connected to the cover plate, and the output end of the electric drive mechanism is connected to the reduction mechanism by transmission. The device has a better load capacity and can ensure better durability of the device as a whole through the ram's horn transmission box body, the electric drive mechanism, and the brake mechanism. The output shaft of the reduction gear passes through the center of the hub. The device can effectively improve the strength of the hub connected to the vehicle body, the operability of the vehicle operation, the operation efficiency of the electric drive device, and the safety of the vehicle driving.

[0004] However, the device also has some problems. The device does not make full use of the wheel side space. The shaft sleeve of the flange shaft head of the device passes through the through hole and is sleeved with the inner ring of the first hub bearing, that is, it is actually connected and fixed at the inner side of the hub. The connection position between the flange shaft head and the inner ring of the first hub bearing occupies part of the hub space, which results in the motor stator, rotor, bearing and other components being close to the inner side of the vehicle when the motor is installed. These components of the motor will greatly occupy the layout space of the chassis suspension, making the layout of the chassis suspension extremely difficult. It is necessary to further improve the utilization rate of the wheel side space. Summary of the invention

[0005] The purpose of this application is to solve the deficiencies of the above-mentioned background technology and to provide a hub motor wheel rim integrated structure, an assembly method and a vehicle.

[0006] The technical solution of the present application is: a hub motor wheel edge integrated structure, comprising:

[0007] The rim is a hollow spokeless annular structure, and a first connecting structure is provided at one end of the rim away from the vehicle body;

[0008] A wheel hub motor, the wheel hub motor comprising an outer rotor housing; the outer rotor housing is sleeved in the wheel rim, a second connection structure is provided at one end of the outer rotor housing away from the vehicle body, and an end of the outer rotor housing close to the vehicle body is fixedly connected to the suspension;

[0009] The outer rotor housing is fixed in the wheel rim through the first connection structure and the second connection structure, so that the outer rotor housing is flush with the end of the wheel rim away from the vehicle body.

[0010] According to a hub motor wheel rim integrated structure provided in the present application, the first connection structure is located on the inner side of the circumference of the rim away from the end of the vehicle body; the second connection structure is located on the outer side of the circumference of the outer rotor shell away from the end of the vehicle body; the first connection structure and the second connection structure are connected as a whole in the axial direction.

[0011] According to a wheel hub motor wheel rim integrated structure provided in the present application, the first connection structure is located on a side of the second connection structure away from the vehicle body.

[0012] According to a hub motor wheel rim integrated structure provided in the present application, the first connection structure includes a flange; the flange is an annular structure located at the end of the rim away from the vehicle body, the circumferential outer side of the flange is connected to the rim, and a plurality of first screw holes arranged at equal intervals along the circumferential direction are provided on the flange.

[0013] According to a wheel hub motor wheel edge integrated structure provided in the present application, the second connection structure includes a plurality of ear plates arranged on the outer side of the circumference of an end of an outer rotor shell away from the vehicle body; the plurality of ear plates are arranged on the outer rotor shell at equal intervals along the circumferential direction, the ear plate is a plate-like structure extending radially, a second screw hole is opened on the ear plate, and the ear plate is fixedly connected to the flange by bolts axially penetrated through the first screw hole and the second screw hole.

[0014] According to a hub motor wheel edge integrated structure provided by the present application, a riveted nut is installed at the end of the bolt located on one side of the flange.

[0015] According to a wheel hub motor wheel edge integrated structure provided by the present application, the wheel hub motor also includes a stator shell; a high-voltage wiring harness interface, a low-voltage wiring harness interface and a water cooling pipe interface are provided at one end of the stator shell close to the vehicle body; a high-voltage wiring harness is connected to the high-voltage wiring harness interface; a low-voltage wiring harness is connected to the low-voltage wiring harness interface; a cooling water pipe is connected to the water cooling pipe interface; a fixing structure for fixing the high-voltage wiring harness, the low-voltage wiring harness and the cooling water pipe is provided between the stator shell and the suspension.

[0016] According to a wheel hub motor wheel rim integrated structure provided in the present application, the fixing structure includes a front suspension fixing bracket for fixing the high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the front suspension and the stator housing of the front wheel, and a rear suspension fixing bracket for fixing the high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the rear suspension and the stator housing of the rear wheel.

[0017] According to a wheel hub motor wheel edge integrated structure provided by the present application, the high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the front suspension fixing brackets have a telescopic margin to accommodate wheel bounce and steering; the high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the rear suspension fixing brackets have a telescopic margin to accommodate wheel bounce.

[0018] The present application also provides a method for assembling a wheel hub motor wheel edge integrated structure, the method being used to assemble any of the above-mentioned wheel hub motor wheel edge integrated structures, comprising:

[0019] Insert the outer rotor housing of the hub motor into the wheel rim along the axial direction, so that the first connecting structure and the second connecting structure are aligned and fit together;

[0020] Connecting bolts are driven into the first connecting structure and the second connecting structure to fix the outer rotor housing and the wheel rim together.

[0021] According to a method for assembling a hub motor wheel rim integrated structure provided in the present application, the method for axially inserting the outer rotor shell of the hub motor into the rim includes: inserting one end of the outer rotor shell provided with a second connecting structure into the rim along the axial direction of the outer rotor shell from the end of the rim close to the vehicle body.

[0022] According to a method for assembling a hub motor wheel rim integrated structure provided in the present application, the method for fitting and aligning the first connecting structure and the second connecting structure includes: fitting the ear plate in the second connecting structure to the side of the flange of the first connecting structure close to the vehicle body, rotating the outer rotor housing and the rim around the axial direction, so that the first screw hole on the flange is aligned with the second screw hole on the ear plate in the axial direction.

[0023] According to a wheel hub motor wheel edge integrated structure provided in the present application, the front suspension fixing bracket includes a plurality of first high-voltage wire harness fixing brackets, and the plurality of first high-voltage wire harness fixing brackets are arranged in sequence and spaced apart along the extension direction of the front suspension high-voltage wire harness, and are used to fix the front suspension high-voltage wire harness to the steering knuckle and the vehicle body longitudinal beam in the front suspension.

[0024] According to a wheel hub motor wheel edge integrated structure provided by the present application, the front suspension high-voltage wire harness between the two first high-voltage wire harness fixing brackets of the steering knuckle and the vehicle body longitudinal beam is a bending structure with a telescopic margin to accommodate wheel bouncing and steering.

[0025] According to a wheel hub motor wheel edge integrated structure provided by the present application, the front suspension fixing bracket includes a plurality of first low-voltage wire harness fixing brackets, and the plurality of first low-voltage wire harness fixing brackets are arranged in sequence and spaced apart along the extension direction of the front suspension low-voltage wire harness, and are used to fix the front suspension low-voltage wire harness to the stator housing and the steering knuckle, shock absorber, and body longitudinal beam in the front suspension.

[0026] According to a wheel hub motor wheel edge integrated structure provided by the present application, the front suspension low-voltage wiring harness between the two first low-voltage wiring harness fixing brackets of the vehicle body longitudinal beam and the shock absorber is a bending structure with a telescopic margin to accommodate wheel bouncing and steering.

[0027] According to a wheel hub motor wheel rim integrated structure provided in the present application, the front suspension fixing bracket includes a plurality of first water pipe fixing brackets, and the plurality of first water pipe fixing brackets are arranged in sequence and spaced apart along the extension direction of the front suspension cooling water pipe, and are used to fix the front suspension cooling water pipe to the steering knuckle and the front bracket in the front suspension.

[0028] According to a hub motor wheel edge integrated structure provided by the present application, the front suspension cooling water pipe between the two first water pipe fixing brackets of the steering knuckle and the front bracket is a bent structure with a telescopic margin to accommodate wheel bounce and steering.

[0029] According to a wheel hub motor wheel edge integrated structure provided in the present application, the rear suspension fixing bracket includes a plurality of second high-voltage wire harness fixing brackets, and the plurality of second high-voltage wire harness fixing brackets are arranged in sequence and spaced apart along the extension direction of the rear suspension high-voltage wire harness, and are used to fix the rear suspension high-voltage wire harness to the joint head and the rear bracket in the rear suspension.

[0030] According to a hub motor wheel edge integrated structure provided by the present application, the rear suspension high-voltage wiring harness between the joint head and the two second high-voltage wiring harness fixing brackets of the rear bracket is a bending structure with a telescopic margin to accommodate wheel bouncing.

[0031] According to a wheel hub motor wheel edge integrated structure provided in the present application, the rear suspension fixing bracket includes a plurality of second low-voltage wiring harness fixing brackets, and the plurality of second low-voltage wiring harness fixing brackets are arranged in sequence and spaced apart along the extension direction of the rear suspension low-voltage wiring harness, and are used to fix the rear suspension low-voltage wiring harness to the joint head and rear bracket in the rear suspension.

[0032] According to a hub motor wheel edge integrated structure provided by the present application, the rear suspension low-voltage wiring harness between the joint head and the two second low-voltage wiring harness fixing brackets of the rear bracket is a bending structure with a telescopic margin to accommodate wheel bouncing.

[0033] According to a wheel hub motor wheel edge integrated structure provided in the present application, the rear suspension fixing bracket includes a plurality of second water pipe fixing brackets, and the plurality of second water pipe fixing brackets are arranged in sequence and spaced apart along the extension direction of the cooling water pipe, and are used to fix the rear suspension cooling water pipe to the joint head in the rear suspension.

[0034] According to a hub motor wheel rim integrated structure provided by the present application, the rear suspension cooling water pipe between the joint head and the two second water pipe fixing brackets of the rear bracket is a bent structure with a telescopic margin to accommodate wheel bouncing.

[0035] The present application also provides a car, wherein the car is equipped with any one of the above-mentioned wheel hub motor wheel rim integrated structures.

[0036] The advantages of the present application are as follows: 1. The wheel rim structure involved in the present application is a hollow spokeless structure. Because the spoke structure is eliminated, the internal space of the entire wheel rim becomes larger, and the outer rotor shell of the hub motor can be further extended into the inner side of the wheel rim, which greatly reduces the weight of the wheel assembly and improves the utilization rate of the internal space of the wheel rim; and the present application fixes the outer rotor shell to the end of the wheel rim away from the vehicle body, and the connection and fixing structure of the wheel rim and the outer rotor shell will not occupy too much effective space inside the wheel rim, and the space coordination between the wheel rim and the motor in the Y direction and the Z direction is more compact, and the outer rotor shell of the motor is closer to the end of the wheel rim away from the vehicle body, and occupies less space on the end of the wheel rim close to the vehicle body, and the design space of the hub motor and the vehicle body suspension is more sufficient, and the distance from the wheel center to the suspension kingpin is greatly reduced, which greatly improves the handling performance of the whole vehicle;

[0037] 2. The first connection structure of the present application is located on the inner side of the circumference of the end of the rim away from the vehicle body, and the second connection structure is located on the outer side of the circumference of the end of the outer rotor shell away from the vehicle body, that is, the connection and fixation of the outer rotor shell and the rim is at the circumferential position of the end of the rim away from the vehicle body, and its connection structure will not occupy the space inside the rim. Sufficient installation space is reserved in the rim to facilitate the arrangement of the hub motor. The hub motor can be arranged to the end of the rim away from the vehicle body to the greatest extent, minimizing the occupation of the hub motor on the space of the wheel end close to the vehicle body, and reserving sufficient space for the hub motor and the suspension for arrangement. In addition, the connection and fixation between the rim and the outer rotor shell facilitates operation and assembly, thereby improving assembly efficiency.

[0038] 3. The first connection structure of the present application is located on the side of the second connection structure away from the vehicle body. Therefore, when the rim and the outer rotor housing are actually assembled, the outer rotor housing can be directly inserted into the rim along the axial direction, and the assembly of the rim and the outer rotor housing becomes extremely convenient. The assembly of the rim and the outer rotor housing will not cause any damage to the interface structure on the outer rotor housing, and the overall operation is extremely simple.

[0039] 4. The first connection structure of the present application includes a flange at one end of the rim away from the vehicle body. The flange is an annular structure with a simple overall structure and is extremely convenient to process. The arrangement of the flange structure also increases the contact area with the outer rotor housing, thereby increasing the tightness and stability of the connection between the outer rotor housing and the rim.

[0040] 5. The second connection structure of the present application includes a plurality of ear plates, which have a simple structure and are arranged on the outer circumference of the end of the outer rotor housing. They are easy to process and correspond to the flange. During actual assembly, the ear plates can be quickly fitted with the flange and can be connected as a whole by tightening the bolts. The overall structure is simple and the assembly is extremely easy.

[0041] 6. The present application provides a riveted nut on the outside of the bolt. The riveted nut can protect the exposed end of the bolt on the one hand, and can enhance the tightness of the connection between the bolt and the rim and the outer rotor housing on the other hand, ensuring that the bolt is tightly fixed in the first screw hole and the second screw hole;

[0042] 7. The present application integrates a high-voltage wiring harness interface, a low-voltage wiring harness interface and a water cooling pipe interface on the stator housing, which facilitates the subsequent installation and connection of the wiring harness and water pipes and improves the assembly efficiency of the wheel side structure of the hub motor;

[0043] 8. This application adopts different fixing modes for the wiring harness and water pipe involved in the front suspension and rear suspension, respectively. The targeted design can be set according to the different functional requirements of the front suspension and rear suspension, ensuring that the wiring harness and water pipe can better adapt to the suspension structure, thereby improving the safety and service life of the wiring harness and water pipe structure;

[0044] 9. Aiming at the different functional requirements of the front suspension and the rear suspension, the present application has made targeted designs for the wiring harness and cooling water pipes on the front suspension fixing bracket and the rear suspension fixing bracket. By leaving a telescopic margin for the wiring harness and the cooling water pipe, it is possible to adapt to the wheel hop and steering of the front wheel and the wheel hop of the rear wheel. The wiring harness and the water pipe are not easily damaged, the service life is extended, and the movement of the wheels will not be interfered with.

[0045] 10. The present application also relates to an assembly method. The assembly method of the present application is very simple. The assembly of the rim and the outer rotor housing is extremely efficient. The rim reserves sufficient installation and arrangement space for the outer rotor housing. The outer rotor housing can fully enter the interior of the rim and is fixed to the end of the rim away from the vehicle body, thereby reserving sufficient installation space for the hub motor and the suspension.

[0046] 11. The assembly method of the outer rotor housing and the rim of the present application is very simple. The outer rotor housing can be inserted into the rim from the inside to the outside. This assembly method is convenient for subsequent bolt tightening operations and will not cause damage to the structure inside the outer rotor housing, thus facilitating subsequent connection and assembly operations.

[0047] 12. The present application is very simple and convenient for assembling the flange and the ear plate. The flange and the ear plate can be conveniently butted together. After the first screw hole and the second screw hole are aligned, the bolts can be inserted to connect the two as one. At the same time, the close fit between the flange and the ear plate can enhance the stability and safety of the entire connection structure.

[0048] 13. The automobile of the present application is integrated with the above-mentioned wheel hub motor wheel rim integrated structure, the space coordination between the rim and the motor in the Y direction and the Z direction is more compact, the design space of the wheel hub motor and the body suspension is more sufficient, the distance from the wheel center to the suspension kingpin is greatly reduced, and it has good handling performance.

[0049] The wheel hub motor wheel rim integrated structure of the present application is simple and easy to assemble and use, which effectively improves the utilization rate of the internal space of the rim and reduces the weight of the wheel assembly. The space coordination between the rim and the motor in the Y and Z directions is more compact, which facilitates the arrangement of the wheel hub motor and the suspension, and improves the vehicle handling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 : Axial view of the wheel hub motor integrated structure of the present application (away from the vehicle body side);

[0051] Figure 2 : Axial view of the wheel hub motor integrated structure of the present application (close to the vehicle body side);

[0052] Figure 3 : An exploded schematic diagram of the wheel hub motor wheel edge integrated structure of the present application (away from the vehicle body side);

[0053] Figure 4 : An exploded schematic diagram of the wheel hub motor wheel edge integrated structure of the present application (close to the vehicle body side);

[0054] Figure 5 : Schematic diagram of the pipeline arrangement structure between the front wheel and the front suspension of the present application;

[0055] Figure 6 : Schematic diagram of the front suspension high voltage wiring harness arrangement structure of the present application;

[0056] Figure 7 : Schematic diagram of the connection between the front suspension high-voltage wiring harness and the high-voltage wiring harness interface of the present application;

[0057] Figure 8 : Schematic diagram of the fixed connection between the front suspension high-voltage wiring harness and the steering knuckle of the present application;

[0058] Fig. 9 : Schematic diagram of the connection between the front suspension high-voltage wiring harness and the vehicle body longitudinal beam of the present application;

[0059] Fig.10 : Schematic diagram of the connection between the front suspension high-voltage wiring harness and the vehicle body longitudinal beam of the present application;

[0060] Fig.11 : Schematic diagram of the front suspension low-voltage wiring harness arrangement structure of the present application;

[0061] Fig.12 : Schematic diagram of the connection between the front suspension low-voltage wiring harness and the stator housing of the present application;

[0062] Fig.13 : Schematic diagram of the connection between the front suspension low-voltage wiring harness and the steering knuckle of the present application;

[0063] Fig.14 : Schematic diagram of the connection between the front suspension low-voltage wiring harness and the shock absorber of the present application;

[0064] Fig.15 : Schematic diagram of the structure of the first low-voltage wire harness fixing bracket of the front suspension low-voltage wire harness of the present application;

[0065] Fig.16 : Schematic diagram of the front suspension cooling water pipe arrangement structure of the present application;

[0066] Fig.17 : Schematic diagram of the connection structure between the front suspension cooling water pipe and the steering knuckle of the present application;

[0067] Fig.18 : Schematic diagram of the connection structure between the front suspension cooling water pipe and the steering knuckle of the present application (from another viewing direction);

[0068] Fig.19: Schematic diagram of the pipeline arrangement structure between the rear wheel and the rear suspension of the present application;

[0069] Fig. 20 : Schematic diagram of the rear suspension high voltage wiring harness arrangement structure of the present application;

[0070] Fig.21 : Schematic diagram of the connection between the high-voltage wiring harness and the joint head of the rear suspension of this application;

[0071] Fig. 22 : Schematic diagram of the connection between the rear suspension high voltage harness and the rear bracket of this application;

[0072] Fig.23 : Schematic diagram of the connection between the rear suspension high-voltage wiring harness and the rear bracket of the present application (from another viewing direction);

[0073] Fig.24 : Schematic diagram of the low-voltage wiring harness layout structure of the rear suspension of this application;

[0074] Fig.25 : Schematic diagram of the low-voltage wiring harness arrangement structure of the rear suspension of this application (another viewing direction);

[0075] Fig.26 : Schematic diagram of the connection between the low-voltage wiring harness and the joint head of the rear suspension of this application;

[0076] Fig. 27 : Schematic diagram of the connection between the low-voltage wiring harness and the spring arm of the rear suspension of this application;

[0077] Fig.28 : Schematic diagram of the connection between the low-voltage wiring harness of the rear suspension and the rear bracket of this application;

[0078] Fig.29 : Schematic diagram of the arrangement structure of the cooling water pipe of the rear suspension of the present application;

[0079] Fig.30 : Schematic diagram of the connection between the cooling water pipe and the joint head of the rear suspension of the present application;

[0080] Wherein: 1 - rim; 11 - flange; 12 - first screw hole;

[0081] 2—outer rotor housing; 21—ear plate; 22—second screw hole;

[0082] 3—front suspension; 31—steering knuckle; 32—body longitudinal beam; 33—shock absorber; 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; 310—first water pipe fixing bracket;

[0083] 4—rear suspension; 41—joint head; 42—spring arm; 43—rear bracket; 44—rear suspension high-voltage wiring harness; 45—rear suspension low-voltage wiring harness; 46—rear suspension cooling water pipe; 47—second high-voltage wiring harness fixing bracket; 48—second low-voltage wiring harness fixing bracket; 49—second water pipe fixing bracket;

[0084] 5—stator housing; 51—high-voltage wiring harness interface; 52—low-voltage wiring harness interface; 53—water cooling pipe interface. DETAILED DESCRIPTION

[0085] The embodiments of the present application are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0086] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0089] The present application relates to a wheel-rim integrated structure of a hub motor and to an installation structure of a rim and a hub motor. The rim of the present application is a spokeless structure, and the space inside the rim for installing the hub motor is larger, so that the hub motor is more convenient to install in the rim, and the hub motor can be installed farther away from the vehicle body in the rim. When the position of the wheel remains unchanged, the wheel-rim integrated structure formed by the rim and the hub motor will not occupy too much effective space on the inner side of the rim, thereby providing more sufficient assembly space for the arrangement of the hub motor and the suspension, making it more convenient to arrange the hub motor and the suspension, providing more sufficient design space for the hub motor and the vehicle body suspension, and greatly reducing the distance from the wheel center to the suspension kingpin, thereby greatly improving the handling performance of the entire vehicle.

[0090] Specifically, Figures 1 to 30 As shown, a hub motor wheel edge integrated structure of the present application includes a rim 1 and a hub motor, wherein the rim 1 is a hollow spokeless annular structure. Because the rim 1 is a spokeless annular structure, the weight of the rim 1 is extremely small, which greatly reduces the weight of the wheel assembly. At the same time, the spokeless rim 1 structure has a larger internal space, which is more convenient for the installation and arrangement of the hub motor.

[0091] The hub motor of the present application includes an outer rotor housing 2. The hub motor wheel-edge integrated structure of the present application mainly describes the connection structure between the hub motor and the rim 1. The hub motor includes an outer rotor housing 2 and a stator housing 5. The outer rotor housing 2 is fixedly connected to the rim 1 and rotates with the wheel. The stator housing 5 is non-rotating and fixedly connected to the vehicle body suspension. The outer rotor housing 2 is sleeved inside the rim 1, that is, the internal space of the rim 1 is fully utilized for the installation of the outer rotor housing 2. The end of the outer rotor housing 2 away from the vehicle body is fixedly connected to the rim 1, and the end of the outer rotor housing 2 close to the vehicle body can be rotatably connected to the stator housing 5 around the axis.

[0092] In the present application, a first connection structure is provided at the end of the rim 1 away from the vehicle body, and a second connection structure is provided at the end of the outer rotor shell 2 away from the vehicle body. The first connection structure and the second connection correspond to each other, and the outer rotor shell 2 and the rim 1 are fixedly connected as a whole through the first connection structure and the second connection structure.

[0093] The outer rotor housing 2 is fixed in the rim 1 through the first connection structure and the second connection structure, so that the outer rotor housing 2 is flush with the end of the rim 1 away from the vehicle body.

[0094] During the actual assembly of the hub motor wheel edge integrated structure of the present application, the outer rotor housing 2 of the hub motor is axially inserted into the rim 1 so that the first connection structure and the second connection structure are aligned and fit; connecting bolts are driven into the first connection structure and the second connection structure to fix the outer rotor housing 2 and the rim 1 as a whole.

[0095] In some embodiments of the present application, the first connection structure and the second connection structure are optimized. Specifically, Figures 1 to 4 As shown, the first connection structure is located on the inner side of the circumference of the rim 1 away from the vehicle body, and the second connection structure is located on the outer side of the circumference of the outer rotor housing 2 away from the vehicle body. The first connection structure and the second connection structure are connected as a whole in the axial direction.

[0096] In order to maximize the use of the internal space of the rim 1, the first connection structure is designed in this embodiment at the inner side of the circumference of the rim 1 away from the vehicle body. Therefore, the connection between the rim 1 and the outer rotor housing 2 is at the inner side of the circumference of the rim 1 away from the vehicle body. This connection arrangement minimizes the occupation of the internal space of the rim 1 by the connection structure of the rim 1 and the outer rotor housing 2. At the same time, the arrangement of the connection structure at a position close to the inner side of the end circumference greatly facilitates the assembly of the two components.

[0097] During actual assembly, the end of the outer rotor housing 2 provided with the second connection structure is inserted into the rim 1 along the axial direction of the outer rotor housing 2 from the end of the rim 1 close to the vehicle body, so that the second connection structure fits together with the first connection structure in the axial direction.

[0098] The outer rotor housing 2 is a cylindrical structure. During assembly, one end provided with the second connection structure is inserted into the rim 1 axially from the end of the rim 1 close to the vehicle body, so that the second connection structure fits together with the first connection structure in the axial direction.

[0099] Furthermore, this embodiment defines the relative positions of the first connecting structure and the second connecting structure during assembly, such as Figures 1 to 4 As shown, the first connecting structure is located on a side of the second connecting structure away from the vehicle body.

[0100] Therefore, when the end of the outer rotor housing 2 provided with the second connection structure is inserted into the rim 1 along the axial direction from the end of the rim 1 close to the vehicle body, the end of the outer rotor housing 2 away from the vehicle body does not extend beyond the rim 1, and the second connection structure on the outer rotor housing 2 is located on the side of the first connection structure of the rim 1 close to the vehicle body. The outer rotor housing 2 makes maximum use of the internal space of the rim 1 without being exposed to affect its use.

[0101] In a further embodiment of the present application, the specific structures of the first connection structure and the second connection structure are optimized. Figures 1 to 4 As shown, the first connection structure of this embodiment includes a flange 11, which is an annular structure located at the end of the rim 1 away from the vehicle body. The outer circumferential side of the flange 11 is connected to the rim 1, and a plurality of first screw holes 12 arranged at equal intervals along the circumferential direction are provided on the flange 11. The second connection structure includes a plurality of lugs 21 arranged at the outer circumferential side of the end of the outer rotor housing 2 away from the vehicle body. The plurality of lugs 21 are arranged at equal intervals along the circumferential direction on the outer rotor housing 2. The lugs 21 are plate-shaped structures extending in the radial direction. The lugs 21 are provided with second screw holes 22. The lugs 21 are fixedly connected to the flange 11 by bolts axially penetrated through the first screw holes 12 and the second screw holes 22.

[0102] The flange 11 and the ear plate 21 are corresponding structures, and the side of the flange 11 facing the vehicle body is tightly fitted with the side of the ear plate 21 facing away from the vehicle body. The first screw holes 12 arranged equidistantly along the circumferential direction on the flange 11 and the second screw holes 22 on the ear plate 21 correspond to each other one by one, and are fixedly connected as a whole by bolts penetrating the first screw holes 12 and the second screw holes 22.

[0103] During actual assembly, one end of the outer rotor housing 2 provided with the ear plate 21 is inserted into the rim 1 along the axial direction of the outer rotor housing 2 from the end of the rim 1 close to the vehicle body, so that the ear plate 21 and the flange 11 are fitted together in the axial direction, and the ear plate 21 is located on the side of the flange 11 facing the vehicle body; the outer rotor housing 2 and the rim 1 are rotated around the axial direction, so that the first screw hole 12 on the flange 11 and the second screw hole 22 on the ear plate 21 are aligned in the axial direction; bolts are driven into the aligned first screw hole 12 and second screw hole 22 from the side of the rim 1 away from the vehicle body, and the order of driving the bolts is to drive them symmetrically with the axis of the rim 1 as the center, until all the bolts are driven in, and the connection between the rim 1 and the outer rotor housing 2 is completed.

[0104] Furthermore, in this embodiment, a riveted nut is installed at the end of the bolt on one side of the flange 11. The riveted nut can protect the exposed end of the bolt on one hand, and can enhance the tightness of the connection between the bolt and the rim 1 and the outer rotor housing 2 on the other hand, ensuring that the bolt is tightly fixed in the first screw hole 12 and the second screw hole 22.

[0105] In other embodiments of the present application, the present embodiment optimizes the above-mentioned hub motor structure. Specifically, Figure 2 , 4 As shown in , 5 and 19, the stator housing 5 of this embodiment is provided with a high-voltage wiring harness interface 51, a low-voltage wiring harness interface 52 and a water-cooling pipe interface 53 at one end close to the vehicle body, and the high-voltage wiring harness interface 51 is connected to the high-voltage wiring harness, one end of the high-voltage wiring harness is connected to the high-voltage wiring harness interface 51 on the stator housing 5, and the other end is connected to the vehicle-mounted MCU; the low-voltage wiring harness interface 52 is connected to the low-voltage wiring harness, one end of the low-voltage wiring harness is connected to the low-voltage wiring harness interface 52 on the stator housing 5, and the other end is connected to the in-vehicle communicator; the water-cooling pipe interface 53 is connected to a cooling water pipe, one end of the cooling water pipe is connected to the water-cooling pipe interface 53 on the stator housing 5, and the other end is connected to the radiator assembly or the charger water pipe assembly; a fixing structure for fixing the high-voltage wiring harness, the low-voltage wiring harness and the cooling water pipe is provided between the stator housing 5 and the suspension.

[0106] When installing the stator housing 5 facing the vehicle body, first fix the stator housing 5 to the vehicle body suspension, then connect the wiring harness and water pipe structure in sequence, connect one end of the high-voltage wiring harness to the high-voltage wiring harness interface 51 on the stator housing 5, and the other end to the vehicle-mounted MCU, and then use the fixed structure to fix the high-voltage wiring harness to avoid shaking or friction with the ground during use; connect one end of the low-voltage wiring harness to the low-voltage wiring harness interface 52 on the stator housing 5, and the other end to the in-vehicle communicator, and similarly use the fixed structure to fix the low-voltage wiring harness; connect one end of the cooling water pipe to the water cooling pipe interface 53 on the stator housing 5, and the other end to the radiator assembly or the charger water pipe assembly, and use the fixed structure to fix the cooling water pipe; complete the connection between the stator housing 5 and the suspension as well as the wiring harness and water pipe.

[0107] The wheel assembly structure of the vehicle in this embodiment is the same, that is, the stator housing 5 and the rim 1 structure of the front wheel and the rear wheel are the same, but the suspension structure connected to the stator housing 5 is different. Considering that the front wheel of the vehicle needs to have a steering function, while the rear wheel does not need to be steered, the suspension of the vehicle in this embodiment is divided into two types, namely, the front suspension 3 and the rear suspension 4. Figure 5 and 19 As shown, the front suspension 3 includes a steering knuckle 31 connected to the stator housing 5, and also includes a shock absorber 33, a vehicle body longitudinal beam 32 and a front bracket 34 structure; the rear suspension 4 includes a joint head 41 fixedly connected to the stator housing 5, and also includes a rear vehicle body longitudinal beam spring arm 42 and a rear bracket 43. In actual application, the front suspension and the rear suspension also involve many other structural components, but in addition to the above components, other components are not connected to the wiring harness and water pipe pipeline structure of this case, and therefore are not within the scope of discussion of this embodiment.

[0108] Because the front suspension 3 and the rear suspension 4 have different functions and different connection forms with the stator housing 5, the fixing structure of the front wheel harness and water pipe pipeline in this embodiment is different from that of the rear wheel harness and water pipe pipeline. That is, the fixing structure of this embodiment includes a front suspension fixing bracket for fixing the high-voltage harness, low-voltage harness and 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 harness, low-voltage harness and cooling water pipe between the rear suspension and the stator housing 5 outside the rear wheel.

[0109] In a further embodiment of the present application, the front suspension fixing bracket is optimized. Specifically, Figures 5 to 10 As shown, the front suspension fixing bracket includes a plurality of first high-voltage wire harness fixing brackets 38, which are arranged in sequence and spaced apart along the extension direction of the front suspension high-voltage wire harness 35, and are used to fix the front suspension high-voltage wire harness 35 to the steering knuckle 31 and the vehicle body longitudinal beam 32 in the front suspension.

[0110] like Figures 5 to 10 As shown, there are three first high-voltage harness fixing brackets 38 of the present embodiment, which are respectively used to fix the front suspension high-voltage harness 35 to the steering knuckle 31, to fix the front suspension high-voltage harness 35 to the front end position of the vehicle body longitudinal beam 32, and to fix the front suspension high-voltage harness 35 to the rear end position of the vehicle body longitudinal beam 32, that is to say, there are five fixing points corresponding to the front suspension high-voltage harness 35, namely the stator housing 5, the steering 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 (the interface corresponding to the vehicle-mounted MCU at the front of the vehicle body). The front suspension high-voltage harness 35 between the steering knuckle 31 and the stator housing 5 is very short, and the structure is relatively stable and not prone to shaking; the front suspension high-voltage harness 35 between the steering knuckle 31 and the front end position of the vehicle body longitudinal beam 32 is relatively long, and this part of the front suspension high-voltage harness 3 5 extends approximately in the Y direction of the vehicle body, and needs to cope with wheel hop and steering. Therefore, the front suspension high-voltage wire harness 35 between the two first high-voltage wire harness fixing brackets 38 of the steering knuckle 31 and the vehicle body longitudinal beam 32 in this embodiment is a bending structure with a telescopic margin to adapt to wheel hop and steering. The telescopic margin can avoid the problem of interference during steering and wheel hop. 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 arranged approximately along the X direction of the vehicle body. This part of the front suspension high-voltage wire harness 35 does not participate in the wheel hop and steering process, and is arranged along the vehicle body longitudinal beam 32, so it can be 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 shorter, has a stable structure, and is not prone to shaking.

[0111] The first high-voltage wire harness fixing bracket 38 of the present embodiment is a cable tie, a buckle or other forms of structure, as long as it can satisfy the function of fixing the front suspension high-voltage wire harness 35, and has the function of fixing the front suspension high-voltage wire harness 35 to the steering knuckle 31, the front end position of the vehicle body longitudinal beam 32, and the vehicle body longitudinal beam 32.

[0112] The front suspension fixing bracket includes a plurality of first low-voltage harness fixing brackets 39, such as Figures 11 to 15 As shown, a plurality of first low-voltage harness fixing brackets 39 are arranged in sequence and spaced apart along the extension direction of the low-voltage harness, and are used to fix the front suspension low-voltage harness 36 to the stator housing 5 and the steering knuckle 31, shock absorber 33, and vehicle body longitudinal beam 32 in the front suspension.

[0113] like Figures 11 to 15As shown, the front suspension low-voltage wiring harness 36 of this embodiment is relatively long, and a total of five first low-voltage wiring harness fixing brackets 39 are provided, which are respectively used to fix the front suspension low-voltage wiring harness 36 to the stator housing 5, fix the front suspension low-voltage wiring harness 36 to the steering knuckle 31, fix the front suspension low-voltage wiring harness 36 to the shock absorber 33, fix the front suspension low-voltage wiring harness 36 to the front end position of the vehicle body longitudinal beam 32, and fix the front suspension low-voltage wiring harness 36 to the rear end position of the vehicle body longitudinal beam 32. The first low-voltage wiring harness fixing bracket 39 can adopt a buckle structure, that is, a buckle structure is reserved at the stator housing 5, the steering knuckle 31, the shock absorber 33, the front end position of the vehicle body longitudinal beam 32, and the rear end position of the vehicle body longitudinal beam 32. Then, when installing the front suspension low-voltage wiring harness 36, the buckle structure on the front suspension low-voltage wiring harness 36 is directly fixed to the corresponding buckle to complete the fixation of the front suspension low-voltage wiring harness 36.

[0114] For the front suspension low-voltage wiring harness 36, the front suspension low-voltage wiring harness 36 between the low-voltage wiring harness interface 52 on the front wheel stator housing 5 and the first low-voltage wiring harness fixing bracket 39 on the stator housing 5 is relatively short, and the fixation on the stator housing 5 is extremely stable, so no special design is required; the front suspension low-voltage wiring harness 36 between the first low-voltage wiring harness fixing bracket 39 at the front end position of the vehicle body longitudinal beam 32 and the first low-voltage wiring harness fixing bracket 39 on the shock absorber 33 is relatively long, and needs to adapt to wheel hop and steering, so it is located at the vehicle body longitudinal beam. The front suspension low-voltage wiring harness 36 between the front end position of 32 and the two first low-voltage wiring harness fixing brackets 39 of the shock absorber 33 is a bending structure with a telescopic margin to adapt to wheel bounce and steering; the front suspension low-voltage wiring harness 36 between the first low-voltage wiring harness fixing bracket 39 on the shock absorber 33 and the in-vehicle communicator is fixed by multiple first low-voltage wiring harness fixing brackets 39, and this part of the front suspension low-voltage wiring harness 36 does not participate in the adaptation process of wheel bounce and steering, so it only needs to be fixed without any other arrangement.

[0115] In this embodiment, the arrangement of the front suspension high-voltage harness 35 and the front suspension low-voltage harness 36 are separated in position. The front suspension high-voltage harness 35 is directly connected to the steering knuckle 31 from the stator housing 5, and then arranged along the vehicle body longitudinal beam 32, and finally connected to the vehicle-mounted MCU. The front suspension low-voltage harness 36 is fixed on the stator housing 5 and then connected to the steering knuckle 31, and then connected to the shock absorber 33, and then arranged along the vehicle body longitudinal beam 32, and finally connected to the in-vehicle communicator. In the area adapted to wheel hop and steering, the front suspension high-voltage harness 35 and the front suspension low-voltage harness 36 are separated in the Z direction. The front suspension high-voltage harness 35 between the front end of the steering knuckle 31 and the vehicle body longitudinal beam 32 and the front suspension low-voltage harness 36 between the steering knuckle 31 and the shock absorber 33 are isolated from each other in the Z direction, and there will be no entanglement problem.

[0116] The front suspension fixing bracket of this embodiment includes a plurality of first water pipe fixing brackets 310, which are arranged in sequence and spaced apart along the extension direction of the cooling water pipe, and are used to fix the front suspension cooling water pipe 37 to the steering knuckle 31 and the front bracket 34 in the front suspension.

[0117] like Figures 16 to 18 As shown, there are two first water pipe fixing brackets 310 in this embodiment, which are used to fix the front suspension cooling water pipe 37 to the steering knuckle 31 and the cooling water pipe to the front bracket 34 respectively. One end of the front suspension cooling water pipe 37 is connected to the water cooling pipe interface 53 of the stator housing 5, and then fixed to the steering knuckle 31 through one first water pipe fixing bracket 310, fixed to the front bracket 34 through another first water pipe fixing bracket 310, and finally connected to the radiator of the vehicle body.

[0118] The front suspension cooling water pipe 37 between the first water pipe fixing bracket 310 on the steering knuckle 31 and the water cooling pipe interface 53 is shorter, so it can be directly fixed and installed; 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 longer, and is approximately arranged along the Y direction of the vehicle body, and needs to participate in the wheel hop and steering. Therefore, the front suspension cooling water pipe 37 between the two first water pipe fixing brackets 310 of the steering knuckle 31 and the front bracket 34 is a bending structure with a telescopic margin to adapt to wheel hop and steering; 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 hop and steering, and can be directly fixed and installed.

[0119] 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 this embodiment are all fixedly connected to the stator housing 5 and the steering knuckle 31. For the area where winding interference is easy to occur, 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, and the problem of winding will not occur. Specifically, the front suspension high-voltage harness between the two first high-voltage harness fixing brackets 38 at the front end of the steering knuckle 31 and the vehicle body longitudinal beam 32, the front suspension cooling water pipe between the two first water pipe fixing brackets 310 at the steering knuckle 31 and the front bracket 34, and the front suspension low-voltage harness between the two first low-voltage harness fixing brackets 39 at the front end of the vehicle body longitudinal beam 32 and the shock absorber 33 are arranged at intervals along the Z direction.

[0120] The first water pipe fixing bracket 310 of the present embodiment can adopt a snap-on structure. By providing a snap-on structure on the steering knuckle 31 and the front bracket 34, a corresponding snap-on is installed on the front suspension cooling water pipe 37. Then, when installing the front suspension cooling water pipe 37, the snap-on on the front suspension cooling water pipe 37 is directly snapped into the snap-on structure on the steering knuckle 31 and the front bracket 34, thereby completing the fixation of the front suspension cooling water pipe 37 to the steering knuckle 31 and the front bracket 34.

[0121] In practical application, the structure is not limited to the above-mentioned first high-voltage wire harness fixing bracket 38, the first low-voltage wire harness fixing bracket 39 and the first water pipe fixing bracket 310, as long as it can meet the corresponding requirements.

[0122] In other embodiments of the present application, the present embodiment optimizes the above-mentioned rear suspension fixing bracket, specifically, Figures 19 to 23 As shown, the rear suspension fixing bracket includes a plurality of second high-voltage wire harness fixing brackets 47, which are arranged in sequence and spaced apart along the extension direction of the rear suspension high-voltage wire harness 44, and are used to fix the rear suspension high-voltage wire harness 44 to the joint head 41 and the rear bracket 43 in the rear suspension.

[0123] like Figures 19 to 23 As shown, there are two second high-voltage harness fixing brackets 47 of this embodiment, which are used to fix the rear suspension high-voltage harness 44 to the joint head 41 and the rear suspension high-voltage harness 44 to the rear bracket 43, that is, there are four fixing points corresponding to the rear suspension high-voltage harness 44, namely the stator housing 5, the joint head 41, the rear bracket 43 and the vehicle-mounted MCU (the interface corresponding to the vehicle-mounted MCU at the rear of the vehicle body). The rear suspension high-voltage harness 44 between the joint head 41 and the stator housing 5 is very short, and the structure is relatively stable and not easy to shake; the rear suspension high-voltage harness 44 between the joint head 41 and the rear bracket 43 The rear suspension high-voltage wiring harness 44 between the two second high-voltage wiring harness fixing brackets 47 on the joint head 41 and the rear bracket 43 is relatively long, and this part of the rear suspension high-voltage wiring harness 44 extends approximately in the Y direction of the vehicle body, and needs to cope with wheel hop. Therefore, in this embodiment, the rear suspension high-voltage wiring harness 44 between the joint head 41 and the two second high-voltage wiring harness fixing brackets 47 on the rear bracket 43 is a bending structure with a telescopic margin to adapt to wheel hop. Leaving the telescopic margin can avoid the problem of pulling interference during wheel hop; the rear suspension high-voltage wiring harness 44 between the rear bracket 43 and the vehicle-mounted MCU is shorter, has a stable structure, and is not prone to shaking.

[0124] The second high-voltage wire harness fixing bracket 47 of this embodiment is a cable tie, a buckle or other forms of structure, as long as it can meet the function of fixing the rear suspension high-voltage wire harness 44, and has the function of fixing the rear suspension high-voltage wire harness 44 to the joint head 41 and the rear bracket 43.

[0125] The rear suspension fixing bracket of this embodiment includes multiple second low-voltage wire harness fixing brackets 48, which are arranged in sequence and spaced apart along the extension direction of the rear suspension low-voltage wire harness 45, and are used to fix the rear suspension low-voltage wire harness 45 to the joint head 41 and the rear bracket 43 in the rear suspension.

[0126] like Figures 24 to 28 As shown, the rear suspension low-voltage wiring harness 45 of this embodiment is longer than the rear suspension high-voltage wiring harness 44, and a total of three second low-voltage wiring harness fixing brackets 48 are provided, which are respectively used to fix the rear suspension low-voltage wiring harness 45 to the joint head 41, fix the low-voltage wiring harness to the spring arm 42, and fix the rear suspension low-voltage wiring harness 45 to the rear bracket 43. The second low-voltage wiring harness fixing bracket 48 can adopt a snap-on structure, that is, a snap-on structure is reserved on the joint head 41, the spring arm 42, and the rear bracket 43. Then, when installing the rear suspension low-voltage wiring harness 45, the snap-on structure on the rear suspension low-voltage wiring harness 45 is directly fixed to the corresponding snap, thereby completing the fixation of the rear suspension low-voltage wiring harness 45.

[0127] For the rear suspension low-voltage wiring harness 45, the rear suspension low-voltage wiring harness 45 between the low-voltage wiring harness interface 52 on the rear wheel stator housing 5 and the second low-voltage wiring harness fixing bracket 48 on the joint head 41 is relatively short, and the fixation on the stator housing 5 is extremely stable, so no special design is required; the rear suspension low-voltage wiring harness 45 between the second low-voltage wiring harness fixing bracket 48 on the joint head 41 and the second low-voltage wiring harness fixing bracket 48 on the spring arm 42 is relatively long and needs to adapt to wheel jump, so the rear suspension low-voltage wiring harness 45 between the two second low-voltage wiring harness fixing brackets 48 of the joint head 41 and the spring arm 42 is a bending structure with a telescopic margin to adapt to wheel jump; the rear suspension low-voltage wiring harness 45 between the second low-voltage wiring harness fixing bracket 48 on the spring arm 42 and the in-vehicle communicator has a second low-voltage wiring harness fixing bracket 48 for fixing, and this part of the rear suspension low-voltage wiring harness 45 does not participate in the adaptation process of wheel jump, so it only needs to be fixed without other arrangements.

[0128] In this embodiment, the rear suspension high-voltage wiring harness 44 and the rear suspension low-voltage wiring harness 45 are arranged in a separated position. The rear suspension high-voltage wiring harness 44 is directly connected from the stator housing 5 to the joint head 41, and then connected to the rear bracket 43; while the rear suspension low-voltage wiring harness 45 of this embodiment is led out from the stator housing 5, connected to the joint head 41, then connected to the spring arm 42, and finally connected to the rear bracket 43. The rear suspension low-voltage wiring harness 45 between the joint head 41 and the rear bracket 43 is passed through the second low-voltage wiring harness fixing bracket 48 on the spring arm 42. The connection between the rear suspension low-voltage wiring harness 45 and the rear bracket 43 and the connection between the rear suspension high-voltage wiring harness 44 and the rear bracket 43 are arranged at intervals in the X direction. Because the rear wheel of the vehicle only has wheel hop and does not involve steering, the rear suspension low-voltage wiring harness 45 and the rear suspension high-voltage wiring harness 44 can only produce relative movement along the Z direction, and there is no relative movement along the X and Y directions. By separating in the X direction, the rear suspension low-voltage wiring harness 45 and the rear suspension high-voltage wiring harness 44 between the joint head 41 and the rear bracket 43 will not have the problem of entanglement and interference.

[0129] The rear suspension fixing bracket of this embodiment includes a plurality of second water pipe fixing brackets 49, which are arranged in sequence and spaced apart along the extension direction of the rear suspension cooling water pipe 46, and are used to fix the rear suspension cooling water pipe 46 to the joint head 41 in the rear suspension.

[0130] like Figures 29-30 As shown, there are two second water pipe fixing brackets 49 in this embodiment, which are used to fix 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 cooling pipe interface 53 of the stator housing 5 of the rear suspension wheel, and then fixed to the joint head 41 through the second water pipe fixing bracket 49, and finally connected to the motor water pipe assembly of the vehicle body.

[0131] The rear suspension cooling water pipe 46 between the second water pipe fixing bracket 49 on the joint head 41 and the water cooling pipe interface 53 is shorter, so it can be directly fixed and installed; 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 longer, and is approximately arranged along the Y direction of the vehicle body, and needs to participate in the wheel hop, so the rear suspension cooling water pipe 46 between the two second water pipe fixing brackets 49 of the joint head 41 and the rear bracket 43 is a bending structure with a telescopic margin to adapt to wheel hop; 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 wheel hop adaptation, and can be directly fixed and installed.

[0132] That is, the rear suspension high-voltage wiring harness 44, the rear suspension low-voltage wiring harness 45 and the rear suspension cooling water pipe 46 of this embodiment are all fixedly connected to the stator housing 5 and the joint head 41. For the area where entanglement interference is prone to occur, the rear suspension high-voltage wiring harness 44, the rear suspension low-voltage wiring harness 45 and the rear suspension cooling water pipe 46 are separated in the X direction. Specifically, the rear suspension high-voltage wiring harness between the two second high-voltage wiring harness fixing brackets 47 of the joint head 41 and the rear bracket 43, the rear suspension low-voltage wiring harness between the two second low-voltage wiring harness fixing brackets 48 of the joint head 41 and the spring arm 42, and the rear suspension cooling water pipe between the two second water pipe fixing brackets 49 of the joint head 41 and the rear bracket 43 are arranged at intervals along the X direction, so there will be no problem of mutual entanglement.

[0133] The second water pipe fixing bracket 49 of the present embodiment can adopt a snap-on structure. By providing a buckle plate structure on the joint head 41 and the rear bracket 43, a corresponding buckle is installed on the rear suspension cooling water pipe 46. Then, when installing the rear suspension cooling water pipe 46, the buckle on the rear suspension cooling water pipe 46 is directly buckled into the buckle plate structure on the joint head 41, thereby completing the fixation of the rear suspension cooling water pipe 46 and the joint head 41.

[0134] In practical application, the structures of the second high-voltage wire harness fixing bracket 47 , the second low-voltage wire harness fixing bracket 48 and the second water pipe fixing bracket 49 are not limited thereto, as long as they can meet corresponding requirements.

[0135] During the actual assembly of the wheel hub motor wheel edge integrated structure of the present application: insert one end of the outer rotor housing 2 provided with the ear plate 21 into the rim 1 along the axial direction of the outer rotor housing 2 from the end of the rim 1 close to the vehicle body, so that the ear plate 21 and the flange 11 are fitted together in the axial direction, and the ear plate 21 is located on the side of the flange 11 facing the vehicle body; rotate the outer rotor housing 2 and the rim 1 around the axial direction, so that the first screw hole 12 on the flange 11 and the second screw hole 22 on the ear plate 21 are aligned in the axial direction; drive bolts into the aligned first screw hole 12 and second screw hole 22 from the side of the rim 1 away from the vehicle body, and the order of driving the bolts is to drive them symmetrically with the axis of the rim 1 as the center, until all the bolts are driven in, and the fixed connection between the rim 1 and the outer rotor housing 2 is completed;

[0136] Install the stator housing 5 and the suspension, respectively fix the stator housing 5 of the front wheel and the front suspension, and fix the stator housing 5 of the rear wheel and the rear suspension;

[0137] Assemble the front suspension harness and water pipes, connect one end of the front suspension high-voltage harness 35 to the high-voltage harness interface 51 of the stator housing 5 of the front wheel, and use a plurality of first high-voltage harness fixing brackets 38 to fix the front suspension high-voltage harness 35 in turn at the steering knuckle 31, the front end of the vehicle body longitudinal beam 32, and the rear end of the vehicle body longitudinal beam 32. Finally, insert the end of the front suspension high-voltage harness 35 into the vehicle-mounted MCU. When fixing the front suspension high-voltage harness 35 with the first high-voltage harness fixing bracket 38, arrange the front suspension high-voltage harness 35 between the two first high-voltage harness fixing brackets 38 of the steering knuckle 31 and the vehicle body longitudinal beam 32 into a bending structure with a telescopic margin to accommodate wheel bouncing and steering.

[0138] Connect one end of the front suspension low-voltage wire harness 36 to the low-voltage wire harness interface 52 of the stator housing 5 of the front wheel, and use a plurality of first low-voltage wire harness fixing brackets 39 to fix the front suspension low-voltage wire harness 36 to the stator housing 5, the steering knuckle 31, the shock absorber 33, the front end of the vehicle body longitudinal beam 32, and the rear end of the vehicle body longitudinal beam 32 in sequence, and finally insert the end of the front suspension low-voltage wire harness 36 into the vehicle-mounted communicator. When the front suspension low-voltage wire harness 36 is fixed by the first low-voltage wire harness fixing bracket 39, the front suspension low-voltage wire harness 36 between the front end of the vehicle body longitudinal beam 32 and the two first low-voltage wire harness fixing brackets 39 of the shock absorber 33 is arranged into a bending structure with a telescopic margin to adapt to wheel bounce and steering;

[0139] One end of the front suspension cooling water pipe 37 is connected to the water cooling pipe interface 53 of the stator housing 5 of the front wheel, and the front suspension cooling water pipe 37 is fixed to the steering knuckle 31 and the front bracket 34 in sequence by using a plurality of first water pipe fixing brackets 310. Finally, the end of the front suspension cooling water pipe 37 is inserted into the vehicle body radiator. When the front suspension cooling water pipe 37 is fixed by using the first water pipe fixing bracket 310, the front suspension cooling water pipe 37 between the two first water pipe fixing brackets 310 of the steering knuckle 31 and the front bracket 34 is arranged into a bending structure with a telescopic margin to adapt to wheel bounce and steering;

[0140] Assemble the rear suspension harness and water pipes, connect one end of the rear suspension high-voltage harness 44 to the high-voltage harness interface 51 of the stator housing 5 of the rear wheel, use a plurality of second high-voltage harness fixing brackets 47 to fix the rear suspension high-voltage harness 44 on the joint head 41 and the rear bracket 43 in sequence, and finally insert the end of the rear suspension high-voltage harness 44 into the vehicle-mounted MCU. When fixing the rear suspension high-voltage harness 44 with the second high-voltage harness fixing bracket 47, arrange the rear suspension high-voltage harness 44 between the two second high-voltage harness fixing brackets 47 of the joint head 41 and the rear bracket 43 into a bending structure with a telescopic margin to accommodate wheel bouncing;

[0141] Connect one end of the rear suspension low-voltage wire harness 45 to the low-voltage wire harness interface 52 of the stator housing 5 of the rear wheel, use a plurality of second low-voltage wire harness fixing brackets 48 to fix the rear suspension low-voltage wire harness 45 on the joint head 41, the spring arm 42, and the rear bracket 43 in sequence, and finally insert the end of the rear suspension low-voltage wire harness 45 into the vehicle-mounted communicator. When the rear suspension low-voltage wire harness 45 is fixed by the second low-voltage wire harness fixing bracket 48, the rear suspension low-voltage wire harness 45 between the two second low-voltage wire harness fixing brackets 48 of the joint head 41 and the spring arm 42 is arranged into a bending structure with a telescopic margin to accommodate wheel bouncing;

[0142] One end of the rear suspension cooling water pipe 46 is connected to the water cooling pipe interface 53 of the stator housing 5 of the rear wheel, and the rear suspension cooling water pipe 46 is fixed to the joint head 41 by using a plurality of second water pipe fixing brackets 49. Finally, the end of the rear suspension cooling water pipe 46 is inserted into the motor water pipe assembly. When the rear suspension cooling water pipe 46 is fixed by the second water pipe fixing bracket 49, the rear suspension cooling water pipe 46 between the two second water pipe fixing brackets 49 of the joint head 41 and the rear bracket 43 is arranged into a bending structure with a telescopic margin to adapt to the wheel jumping;

[0143] Complete the assembly of the hub motor, the rim 1, the suspension, the wiring harness and the pipeline structure.

[0144] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A wheel hub motor wheel edge integrated structure, characterized in that: include, A rim (1), wherein the rim (1) is a hollow spoke-free annular structure, and a first connection structure is provided at one end of the rim (1) away from the vehicle body; A wheel hub motor, the wheel hub motor comprising an outer rotor housing (2); the outer rotor housing (2) is sleeved in a wheel rim (1); a second connection structure is provided at one end of the outer rotor housing (2) away from the vehicle body; and an end of the outer rotor housing (2) close to the vehicle body is fixedly connected to a suspension; The outer rotor housing (2) is fixed in the rim (1) via a first connection structure and a second connection structure, so that the outer rotor housing (2) and the end of the rim (1) away from the vehicle body are flush.

2. The wheel hub motor wheel edge integrated structure according to claim 1, characterized in that: The first connection structure is located on the inner side of the circumference of the rim (1) away from the end of the vehicle body; the second connection structure is located on the outer side of the circumference of the outer rotor housing (2) away from the end of the vehicle body; the first connection structure and the second connection structure are connected as one in the axial direction.

3. The wheel hub motor wheel edge integrated structure according to claim 2, characterized in that: The first connection structure is located at a side of the second connection structure away from the vehicle body.

4. The wheel hub motor wheel edge integrated structure according to claim 3, characterized in that: The first connection structure comprises a flange (11); the flange (11) is an annular structure located at one end of the rim (1) away from the vehicle body, the outer circumferential side of the flange (11) is connected to the rim (1), and the flange (11) is provided with a plurality of first screw holes (12) arranged at equal intervals in the circumferential direction.

5. The wheel hub motor wheel rim integrated structure according to claim 4, characterized in that: The second connection structure comprises a plurality of ear plates (13) arranged on the outer side of the circumference of one end of the outer rotor housing (2) away from the vehicle body; the plurality of ear plates (13) are arranged on the outer rotor housing (2) at equal intervals in the circumferential direction; the ear plates (13) are plate-like structures extending in the radial direction; a second screw hole (22) is formed on the ear plates (13); the ear plates (13) are fixedly connected to the flange (11) by bolts axially penetrated in the first screw hole (12) and the second screw hole (22).

6. The wheel hub motor wheel rim integrated structure according to claim 5, characterized in that: A riveted nut is installed at the end of the bolt located on one side of the flange (11).

7. The wheel hub motor wheel edge integrated structure according to claim 1, characterized in that: The wheel hub motor further comprises a stator housing (5); a high-voltage wiring harness interface (51), a low-voltage wiring harness interface (52) and a water cooling pipe interface (53) are provided at one end of the stator housing (5) close to the vehicle body; a high-voltage wiring harness interface (51) is connected to a high-voltage wiring harness; a low-voltage wiring harness interface (52) is connected to a low-voltage wiring harness; a cooling water pipe is connected to the water cooling pipe interface (53); and a fixing structure for fixing the high-voltage wiring harness, the low-voltage wiring harness and the cooling water pipe is provided between the stator housing (5) and the suspension.

8. The wheel hub motor wheel edge integrated structure according to claim 7, characterized in that: The fixing structure comprises a front suspension fixing bracket for fixing a high-voltage wire harness, a low-voltage wire harness and a cooling water pipe between a front suspension and a stator housing (5) of a 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 a rear suspension and a stator housing (5) of a rear wheel.

9. The wheel hub motor wheel edge integrated structure according to claim 8, characterized in that: The high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the front suspension fixing brackets have expansion and contraction margins to accommodate wheel bouncing and steering; the high-voltage wiring harness, low-voltage wiring harness and cooling water pipe between the rear suspension fixing brackets have expansion and contraction margins to accommodate wheel bouncing.

10. A method for assembling a wheel hub motor integrated structure, characterized in that: The assembly method is used to assemble any one of the wheel hub motor wheel edge integrated structures as claimed in claims 1 to 9, and comprises: Inserting the outer rotor housing (2) of the hub motor into the wheel rim (1) along the axial direction, so that the first connection structure and the second connection structure are aligned and fit together; Connecting bolts are driven into the first connecting structure and the second connecting structure to integrally connect the outer rotor housing (2) and the wheel rim (1).

11. The method for assembling the wheel hub motor integrated structure according to claim 10, characterized in that: The method for axially inserting the outer rotor housing (2) of a hub motor into a wheel rim (1) comprises: inserting one end of the outer rotor housing (2) provided with a second connection structure into the wheel rim (1) from an end of the wheel rim (1) close to the vehicle body along the axial direction of the outer rotor housing (2).

12. A method for assembling a hub motor wheel edge integrated structure according to claim 10 or 11, characterized in that: The method for making the first connection structure and the second connection structure fit and align comprises: fitting the ear plate (13) in the second connection structure to the side of the flange (11) of the first connection structure close to the vehicle body, rotating the outer rotor housing (2) and the rim (1) around the axis direction, so that the first screw hole (12) on the flange (11) and the second screw hole (22) on the ear plate (13) are aligned in the axial direction.

13. A car, characterized in that: The automobile is equipped with any one of the wheel hub motor wheel rim integrated structures as described in claims 1 to 9.

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