In-wheel motor wheel-side pipeline integrated structure and automobile

Abstract

This invention relates to the field of automotive component structure technology, specifically to an integrated structure for wheel hub motor and its wheel-side pipeline, and an automobile. It includes a wheel rim, a wheel hub motor, and a suspension. The wheel hub motor includes an outer rotor housing and a stator housing. A high-voltage wiring harness interface, a low-voltage wiring harness interface, and a water-cooling pipe interface are provided at the end of the stator housing near 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. Multiple fixing structures for securing the high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe are provided between the stator housing and the suspension. The high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe between adjacent fixing structures have expansion and contraction allowances to accommodate wheel movement and / or steering. This application can conveniently fix and constrain the pipelines, and by setting expansion and contraction allowances, it avoids the pulling effect on the pipelines during wheel operation, thus improving the service life of the pipelines.

Description

Technical Field

[0001] This invention relates to the field of automotive component structure technology, specifically to an integrated structure for a hub motor wheel-side pipeline and an automobile. Background Technology

[0002] In the field of new energy vehicle technology, hub motors are widely used as a new structure. In the wheel-end arrangement, the high and low voltage wiring harnesses and cooling pipe outlets of the hub motor face many difficulties in layout in order to avoid the damping shock absorbers of the MacPherson suspension. In addition, the front independent suspension is subject to the action of the steering tie rod, which causes it to bounce up and down. Furthermore, the hub motor itself is constrained by the installation space of the brake calipers or brake drums, making the matching space between the hub motor and the MacPherson suspension quite compact. This leads to interference problems between the hub motor wiring harnesses, such as the high and low voltage wiring harnesses and cooling pipes, and the surrounding moving parts.

[0003] To address this issue, existing technologies have proposed matching the hub motor with a double wishbone front independent suspension. The hub motor wiring harness, including the high and low voltage wiring, cooling pipes, and lubrication pipes, can be arranged along the upper or lower control arm of the double wishbone suspension. This effectively secures the wiring and prevents it from swaying during the vertical movement of the suspension system. Furthermore, by positioning the brake calipers opposite the steering tie rods, interference between the steering tie rods and the wiring harnesses can be avoided, ensuring a stable and rational wiring harness arrangement.

[0004] However, this structure also has some problems. This structure directly fixes the pipeline to the control arm. Although this method of fixing the wiring harness can solve the problem of wiring harness swaying, in actual application, because the pipeline needs to adapt to the wheel bounce and steering function, if the pipeline is completely fixed to the control arm, the pipeline and the wheel end joint will have relative displacement through the pipeline and suspension fixing connection point during wheel bounce and steering. The pipeline will be pulled, which can easily cause damage or detachment of the pipeline. Summary of the Invention

[0005] The purpose of this application is to address the shortcomings of the aforementioned background technology and to provide a hub motor wheel-side integrated structure, assembly method, and automobile.

[0006] The technical solution of this application is: an integrated structure for wheel hub motor and wheel-side pipeline, including a wheel rim, a wheel hub motor, and a suspension; the wheel hub motor includes an outer rotor housing fixedly connected to the wheel rim and a stator housing fixedly connected to the suspension; a high-voltage wiring harness interface, a low-voltage wiring harness interface, and a water-cooling pipeline interface are provided at one end of the stator housing near 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 pipeline interface; multiple fixing structures for fixing the high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe are provided between the stator housing and the suspension; the high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe between adjacent fixing structures have a telescopic allowance to accommodate wheel bounce and / or steering.

[0007] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the fixing structure includes a front suspension fixing bracket disposed between the stator housing and the vehicle front suspension; the front suspension fixing bracket includes a plurality of first high-voltage wiring harness fixing brackets for fixing and constraining the front suspension high-voltage wiring harness; the plurality of first high-voltage wiring harness fixing brackets are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension high-voltage wiring harness, fixing the front suspension high-voltage wiring harness to the steering knuckle and the vehicle body longitudinal beam in the front suspension; the front suspension high-voltage wiring harness located between the two first high-voltage wiring harness fixing brackets of the steering knuckle and the vehicle body longitudinal beam is a bent structure with a stretching allowance to accommodate wheel bounce and steering.

[0008] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the plurality of first high-voltage wiring harness fixing brackets are arranged sequentially and at intervals from the wheel end to the body and from the front wheel to the body along the extension direction of the front suspension high-voltage wiring harness, and the front suspension high-voltage wiring harness is fixedly connected to the steering knuckle, the front end of the body longitudinal beam and the rear end of the body longitudinal beam. The front suspension high-voltage wiring harness between the two first high-voltage wiring harness fixing brackets at the front end of the steering knuckle and the body longitudinal beam is a bent structure with a stretching allowance to accommodate wheel bounce and steering.

[0009] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the front suspension fixing bracket includes multiple first low-voltage wiring harness fixing brackets. The multiple first low-voltage wiring harness fixing brackets are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension low-voltage wiring harness, and the front suspension low-voltage wiring harness is fixedly connected to the stator housing and the steering knuckle, shock absorber and body longitudinal beam in the front suspension. The front suspension low-voltage wiring harness located between the two first low-voltage wiring harness fixing brackets of the body longitudinal beam and the shock absorber is a bent structure with a stretching allowance to accommodate wheel bounce and steering.

[0010] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the front suspension fixing bracket includes multiple first water pipe fixing brackets, which are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension cooling water pipe, and fix the front suspension cooling water pipe to the steering knuckle and the front bracket in the front suspension; 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 flexibility to accommodate wheel bounce and steering.

[0011] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the front suspension high-voltage wiring harness located between two first high-voltage wiring harness fixing brackets at the front end of the steering knuckle and the vehicle body longitudinal beam, the front suspension cooling water pipe located between two first water pipe fixing brackets between the steering knuckle and the front bracket, and the front suspension low-voltage wiring harness located between the front end of the vehicle body longitudinal beam and two first low-voltage wiring harness fixing brackets of the shock absorber are arranged at intervals along the Z direction.

[0012] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the fixing structure includes a rear suspension fixing bracket disposed between the stator housing and the vehicle rear suspension; the rear suspension fixing bracket includes a plurality of second high-voltage wiring harness fixing brackets, which are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the rear suspension high-voltage wiring harness, thereby fixing the rear suspension high-voltage wiring harness to the joint head and rear bracket in the rear suspension; the rear suspension high-voltage wiring harness located between two second high-voltage wiring harness fixing brackets of the joint head and the rear bracket is a bent structure with a stretch allowance to accommodate wheel bounce.

[0013] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the rear suspension fixing bracket includes multiple second low-voltage wiring harness fixing brackets. The multiple second low-voltage wiring harness fixing brackets are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the rear suspension low-voltage wiring harness, fixing the rear suspension low-voltage wiring harness to the joint head, spring arm and rear bracket in the rear suspension; the rear suspension low-voltage wiring harness located between the two second low-voltage wiring harness fixing brackets of the joint head and spring arm is a bent structure with a stretch allowance to accommodate wheel bounce.

[0014] According to the wheel hub motor wheel-side pipeline integration structure provided in this application, the rear suspension fixing bracket includes multiple second water pipe fixing brackets, which are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the cooling water pipe, fixing the rear suspension cooling water pipe to the joint head in the rear suspension; the rear suspension cooling water pipe located between the joint head and the two second water pipe fixing brackets of the rear bracket is a bent structure with a flexibility to accommodate wheel bounce.

[0015] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the rear suspension high-voltage wiring harness located between the two second high-voltage wiring harness fixing brackets of the joint head and the rear bracket, the rear suspension low-voltage wiring harness located between the two second low-voltage wiring harness fixing brackets of the joint head and the spring arm, and the rear suspension cooling water pipe located between the two second water pipe fixing brackets of the joint head and the rear bracket are arranged at intervals along the X direction.

[0016] According to the in-wheel motor wheel-side pipeline integrated structure provided in this application, it includes,

[0017] The wheel rim is a hollow, spokeless annular structure, and a first connecting structure is provided at the end of the wheel rim away from the vehicle body;

[0018] A hub motor, comprising an outer rotor housing; the outer rotor housing is fitted inside the wheel rim, a second connecting structure is provided at the end of the outer rotor housing away from the vehicle body, and the end of the outer rotor housing close to the vehicle body is fixedly connected to the suspension.

[0019] The outer rotor housing is fixed inside the wheel rim by a first connecting structure and a second connecting structure, so that the outer rotor housing and the end of the wheel rim away from the vehicle body are flush.

[0020] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the first connecting structure is located on the inner circumference of the end of the wheel rim away from the vehicle body; the second connecting structure is located on the outer circumference of the outer rotor housing away from the vehicle body; the first connecting structure and the second connecting structure are connected as one unit in the axial direction.

[0021] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the first connecting structure is located on the side of the second connecting structure away from the vehicle body.

[0022] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the first connection structure includes a flange; the flange is an annular structure located at the end of the wheel rim away from the vehicle body, the outer circumference of the flange is connected to the wheel rim, and a plurality of first screw holes are provided on the flange at equal intervals along the circumference.

[0023] According to the wheel hub motor wheel-side pipeline integrated structure provided in this application, the second connection structure includes a plurality of ear plates disposed on the outer circumference of the outer rotor housing away from the vehicle body; the plurality of ear plates are equidistantly arranged on the outer rotor housing in the circumferential direction, the ear plates are plate-shaped structures extending radially, and the ear plates are provided with second screw holes, and the ear plates are fixedly connected to the flange by bolts passing through the first screw hole and the second screw hole in the axial direction.

[0024] According to the hub motor wheel-side pipeline integrated structure provided in this application, a rivet nut is installed at the end of the bolt located on one side of the flange.

[0025] This application also provides a method for assembling an integrated structure for a hub motor wheel-side pipeline, the assembly method being used to assemble any of the above-mentioned integrated structures for a hub motor wheel-side pipeline, including,

[0026] Insert the outer rotor housing of the hub motor axially into the wheel rim, so that the first connecting structure and the second connecting structure fit and align.

[0027] Connecting bolts are driven into the first and second connecting structures to fix the outer rotor housing and the wheel rim together.

[0028] According to the assembly method of the wheel hub motor wheel-side pipeline integrated structure provided in this application, the method of inserting the outer rotor housing of the wheel hub motor into the wheel rim along the axial direction includes: inserting one end of the outer rotor housing with the second connecting structure into the wheel rim from the end of the wheel rim closer to the vehicle body along the axial direction of the outer rotor housing.

[0029] According to the assembly method of the wheel hub motor wheel-side pipeline integrated structure provided in this application, the method of 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 near the vehicle body, rotating the outer rotor housing and the wheel rim around the axis, so that the first screw hole on the flange and the second screw hole on the ear plate are aligned in the axial direction.

[0030] This application also provides an automobile equipped with any of the above-described hub motor wheel-side pipeline integrated structures.

[0031] The advantages of this application are as follows: 1. This application connects the high-voltage wiring harness interface, low-voltage wiring harness interface, and water-cooling pipe interface to the corresponding pipelines by setting up the occupied high-voltage wiring harness interface, low-voltage wiring harness interface, and water-cooling pipe interface on the stator housing of the hub motor, which greatly facilitates the docking and assembly operation of the pipelines and the hub motor. At the same time, this application fixes and restricts the pipelines through multiple fixed structures, avoiding the swinging of the pipelines during use and preventing damage caused by interference or dragging. In addition, this application leaves a slack between the fixed structures for the pipelines to adapt to wheel jumps and / or turns, ensuring that the pipelines can expand and contract as the wheels jump and / or turn, without pulling on the wheels or being pulled, resulting in better protection of the pipelines and a longer service life. The overall hub motor wheel-side pipeline integrated structure is simple to arrange.

[0032] 2. This application has made a targeted design for the fixing method of the front suspension high-voltage wiring harness between the front wheel and the front suspension. By fixing the front suspension high-voltage wiring harness to the steering knuckle and the body longitudinal beam in sequence, the front suspension high-voltage wiring harness can be effectively constrained, making it easier to arrange the front suspension high-voltage wiring harness. At the same time, the extension and retraction slack of the front suspension high-voltage wiring harness between the steering knuckle and the front end of the body longitudinal beam can avoid the entanglement of the front suspension high-voltage wiring harness and improve the service life of the front suspension high-voltage wiring harness.

[0033] 3. This application fixes and restricts the low-voltage wiring harness of the front suspension between the front wheel and the front suspension. The low-voltage wiring harness of the front suspension is fixed to the stator housing, the steering knuckle, the shock absorber and the longitudinal beam of the body in the front suspension by multiple first low-voltage wiring harness fixing brackets. This can effectively constrain the low-voltage wiring harness of the front suspension. In addition, there is a telescopic allowance between the steering knuckle and the shock absorber, which can cope with the steering and wheel bounce of the front wheel and avoid the entanglement of the low-voltage wiring harness of the front suspension.

[0034] 4. This application fixes and restricts the front suspension cooling water pipe between the front wheel and the front suspension. The front suspension cooling water pipe is fixed to the steering knuckle and front bracket in the front suspension by multiple first water pipe fixing brackets. This can effectively restrict the front suspension cooling water pipe and prevent swaying during use. At the same time, there is a telescopic allowance between the steering knuckle and the front bracket to cope with the steering and wheel bounce of the front wheel and avoid the entanglement of the front suspension cooling water pipe.

[0035] 5. This application arranges the front suspension high-voltage wiring harness, front suspension low-voltage wiring harness and front suspension cooling water pipe in a Z-direction spaced manner, which can separate the parts with extension and retraction margin in the Z-direction, avoid them getting tangled together during wheel bounce and steering, causing damage to the pipelines, and improve the service life of the pipelines.

[0036] 6. This application has made a targeted design for the fixing method of the high-voltage wiring harness of the rear suspension between the rear wheel and the rear suspension. By fixing the high-voltage wiring harness of the rear suspension to the joint head and the rear bracket in sequence, the high-voltage wiring harness of the rear suspension can be effectively constrained, making it easier to arrange. At the same time, the extension and retraction slack of the high-voltage wiring harness of the rear suspension between the joint head and the rear bracket can avoid pulling on the high-voltage wiring harness of the rear suspension and improve the service life of the high-voltage wiring harness of the rear suspension.

[0037] 7. This application fixes and restricts the low-voltage wiring harness of the rear suspension between the rear wheel and the rear suspension. The low-voltage wiring harness of the rear suspension is fixed to the joint head and the rear bracket by multiple second low-voltage wiring harness fixing brackets, which can effectively constrain the low-voltage wiring harness of the rear suspension. In addition, there is a telescopic allowance between the joint head and the spring arm, which can cope with the wheel bounce of the rear wheel and avoid the pulling of the low-voltage wiring harness of the rear suspension.

[0038] 8. This application fixes and restricts the rear suspension cooling water pipe between the rear wheel and the rear suspension. The rear suspension cooling water pipe is fixed to the joint head in the rear suspension by multiple second water pipe fixing brackets. This can effectively restrict the rear suspension cooling water pipe and prevent swaying during use. At the same time, it leaves a telescopic allowance to cope with the wheel bounce of the rear wheel and avoid the pulling of the rear suspension cooling water pipe.

[0039] 9. This application arranges the rear suspension high-voltage wiring harness, rear suspension low-voltage wiring harness and rear suspension cooling water pipe at intervals in the X direction with a allowance for expansion and contraction, so as to avoid mutual entanglement and interference during use, avoid mutual entanglement between pipelines, and improve the service life of pipelines.

[0040] 10. This application also relates to an automobile that integrates the above-mentioned hub motor wheel-side pipeline integrated structure, which can effectively arrange the pipeline, adapt well to wheel bounce and / or steering, greatly extend the service life of the pipeline, avoid damage caused by pipeline pulling, and has great promotional value.

[0041] The wheel hub motor wheel-side pipeline integrated structure of this application is simple and can easily fix and constrain the pipeline. By setting the extension allowance, the pulling effect on the pipeline during wheel operation is avoided, the service life of the pipeline is improved, and it has great promotional value. Attached Figure Description

[0042] Figure 1 This application presents a schematic diagram of the pipeline layout between the front wheel and the front suspension.

[0043] Figure 2 : Schematic diagram of the front suspension high-voltage wiring harness arrangement structure of this application;

[0044] Figure 3 This application includes a schematic diagram of the connection between the front suspension high-voltage wiring harness and the high-voltage wiring harness interface.

[0045] Figure 4 This application includes a schematic diagram of the fixed connection between the front suspension high-voltage wiring harness and the steering knuckle.

[0046] Figure 5 This application includes a schematic diagram of the connection between the front suspension high-voltage wiring harness and the vehicle body longitudinal beam.

[0047] Figure 6 This application includes a schematic diagram of the connection between the front suspension high-voltage wiring harness and the vehicle body longitudinal beam.

[0048] Figure 7 : A schematic diagram of the front suspension low-voltage wiring harness arrangement structure of this application;

[0049] Figure 8 This application includes a schematic diagram of the connection between the front suspension low-voltage wiring harness and the stator housing.

[0050] Figure 9 This application includes a schematic diagram of the connection between the front suspension low-voltage wiring harness and the steering knuckle.

[0051] Figure 10 This application includes a schematic diagram of the connection between the front suspension low-voltage wiring harness and the shock absorber.

[0052] Figure 11 : A schematic diagram of the first low-voltage wiring harness fixing bracket structure for the front suspension low-voltage wiring harness of this application;

[0053] Figure 12 : A schematic diagram of the front suspension cooling water pipe arrangement structure of this application;

[0054] Figure 13 This application includes a schematic diagram of the connection structure between the front suspension cooling water pipe and the steering knuckle.

[0055] Figure 14 : Schematic diagram of the connection structure between the front suspension cooling water pipe and the steering knuckle in this application (another view);

[0056] Figure 15 This application provides a schematic diagram of the pipeline layout between the rear wheel and the rear suspension.

[0057] Figure 16 : A schematic diagram of the rear suspension high-voltage wiring harness arrangement structure of this application;

[0058] Figure 17 This application includes a schematic diagram of the connection between the high-voltage wiring harness and the joint head of the rear suspension.

[0059] Figure 18 This application includes a schematic diagram of the connection between the high-voltage wiring harness of the rear suspension and the rear bracket.

[0060] Figure 19 This application presents a schematic diagram of the connection between the high-voltage wiring harness of the rear suspension and the rear bracket (from another view).

[0061] Figure 20 This application includes a schematic diagram of the rear suspension low-voltage wiring harness arrangement.

[0062] Figure 21 : Schematic diagram of the rear suspension low-voltage wiring harness arrangement structure (another view);

[0063] Figure 22 This application includes a schematic diagram of the connection between the low-voltage wiring harness and the joint head of the rear suspension.

[0064] Figure 23 This application includes a schematic diagram of the connection between the low-voltage wiring harness and the spring arm of the rear suspension.

[0065] Figure 24 This application includes a schematic diagram of the connection between the low-voltage wiring harness of the rear suspension and the rear bracket.

[0066] Figure 25 : A schematic diagram of the rear suspension cooling water pipe arrangement structure of this application;

[0067] Figure 26 This application includes a schematic diagram of the connection between the rear suspension cooling water pipe and the joint head.

[0068] Figure 27 Axial view of the wheel hub motor wheel-side integrated structure of this application (away from the vehicle body side);

[0069] Figure 28 Axial view of the wheel hub motor wheel-side integrated structure of this application (near the vehicle body side);

[0070] Figure 29 : An exploded view of the wheel hub motor wheel-side integrated structure of this application (away from the vehicle body side);

[0071] Figure 30 : An exploded view of the wheel hub motor wheel-side integrated structure of this application (near the vehicle body side);

[0072] Wherein: 1—rim; 11—flange; 12—first screw hole;

[0073] 2—Outer rotor housing; 21—Ear plate; 22—Second screw hole;

[0074] 3—Front suspension; 31—Steering knuckle; 32—Longitudinal beam of the body; 33—Shock absorber; 34—Front bracket; 35—Front suspension high-voltage wiring harness; 36—Front suspension low-voltage wiring harness; 37—Front suspension coolant hose; 38—First high-voltage wiring harness mounting bracket; 39—First low-voltage wiring harness mounting bracket; 310—First coolant hose mounting bracket;

[0075] 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;

[0076] 5—Stator housing; 51—High-voltage wiring harness interface; 52—Low-voltage wiring harness interface; 53—Water-cooled pipeline interface. Detailed Implementation

[0077] The embodiments of this application are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0078] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0081] This application relates to an integrated structure for a hub motor wheel-side pipeline, involving a wheel rim, a hub motor, and a suspension. This application uses a fixing structure to fix the pipeline to the hub motor and the suspension, and leaves a slack between the hub motor and the suspension for the pipeline to accommodate wheel bounce and / or steering, so that the pipeline is not pulled during actual use and will not be damaged by wheel bounce and / or steering, thus improving the service life of the pipeline.

[0082] Specifically, such as Figures 1-30 As shown, this application discloses a hub motor wheel-side pipeline integrated structure, including a wheel rim 1, a hub motor, and a suspension. The hub motor includes an outer rotor housing 2 fixedly connected to the wheel rim 1 and a stator housing 5 fixedly connected to the suspension. The stator housing 5 has a high-voltage wiring harness interface 51, a low-voltage wiring harness interface 52, and a water-cooling pipe interface 53 at one end near the vehicle body. A high-voltage wiring harness is connected to the high-voltage wiring harness interface 51, and a low-voltage wiring harness is connected to the low-voltage wiring harness interface 52. A cooling water pipe is connected to the water-cooling pipe interface 53. Multiple fixing structures for fixing the high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe are provided between the stator housing 5 and the suspension. The high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe between adjacent fixing structures have expansion and contraction allowances to accommodate wheel bounce and / or steering.

[0083] like Figure 1 , 15As shown in Figure 28, a high-voltage wiring harness is connected to the high-voltage wiring harness interface 51. 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 MCU. A low-voltage wiring harness is connected to the low-voltage wiring harness interface 52. 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. A cooling water pipe is connected to the water cooling pipe interface 53. 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.

[0084] When installing the stator housing 5 on the side facing the vehicle body, first fix the stator housing 5 to the vehicle 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 MCU. Then use the fixing 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. Similarly, use the fixing structure to fix the low-voltage wiring harness. Connect one end of the coolant pipe to the water-cooled pipe interface 53 on the stator housing 5, and the other end to the radiator assembly or charger water pipe assembly. Use the fixing structure to fix the coolant pipe. The connection between the stator housing 5 and the suspension, as well as the wiring harness and water pipe structure, is completed.

[0085] In this application, the high-voltage wiring harness interface 51, the low-voltage wiring harness interface 52, and the water-cooled pipe interface 53 differ not only in their connection objects but also in their orientation. Figure 28 As shown, the low-voltage harness interface 52 is tangentially along the circumferential direction of the stator housing 5, while the high-voltage harness interface 51 and the water-cooling pipe interface 53 are axially parallel to the stator housing 5. This arrangement allows easily tangled harnesses to be arranged from different directions. Furthermore, the positions of the high-voltage harness interface 51, low-voltage harness interface 52, and water-cooling pipe interface 53 on the stator housing 5 are different and do not overlap.

[0086] The wheel assembly structure used in this application is the same for vehicles, that is, the stator housing 5 and rim 1 of the front and rear wheels are the same. However, the suspension structure connected to the stator housing 5 is different. Considering that the front wheels of the vehicle need to have steering function, while the rear wheels do not need to steering, the suspension of the vehicle in this application is divided into two types, namely the front suspension 3 and the rear suspension 4. Figures 1-14As shown, the front suspension 3 includes a steering knuckle 31 connected to the stator housing 5, as well as a shock absorber 33, a 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, as well as a rear body longitudinal beam spring arm 42 and a rear bracket 43. In practical applications, the front and rear suspensions involve many other structural components, but apart from the components mentioned above, these other components are not connected to the pipeline structure of this application and are therefore not within the scope of this application.

[0087] Because the front suspension 3 and the rear suspension 4 have different functions and different connection methods with the stator housing 5, the fixing structure of the front wheel wiring harness and water pipe in this application is different from that of the rear wheel wiring harness and water pipe. That is, the fixing structure of this application 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 5 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 5 outside the rear wheel.

[0088] In a further embodiment of this application, the aforementioned front suspension mounting bracket has been optimized, specifically, as follows: Figures 2-6 As shown, the front suspension mounting bracket includes multiple first high-voltage wiring harness mounting brackets 38, which are arranged sequentially and at intervals along the extension direction of the front suspension high-voltage wiring harness 35, and are used to fix the front suspension high-voltage wiring harness 35 to the steering knuckle 31 and the body longitudinal beam 32 in the front suspension.

[0089] like Figures 2-6As shown, this embodiment has three first high-voltage wiring harness fixing brackets 38, which are used to fix the front suspension high-voltage wiring harness 35 to the steering knuckle 31, to the front end of the vehicle longitudinal beam 32, and to the rear end of the vehicle longitudinal beam 32, respectively. In other words, there are five fixing points for the front suspension high-voltage wiring harness 35: the stator housing 5, the steering knuckle 31, the front end of the vehicle longitudinal beam 32, the rear end of the vehicle longitudinal beam 32, and the on-board MCU (the interface corresponding to the on-board MCU at the front of the vehicle). The front suspension high-voltage wiring harness 35 between the steering knuckle 31 and the stator housing 5 is very short, and its structure is relatively stable and not prone to shaking. The front suspension high-voltage wiring harness 35 between the steering knuckle 31 and the front end of the vehicle longitudinal beam 32 is relatively long, and this part of the front suspension high-voltage wiring harness 35... 5. Extending approximately along the Y-axis of the vehicle body, it needs to accommodate wheel bounce and steering. Therefore, in this embodiment, the front suspension high-voltage wiring harness 35 located between the two first high-voltage wiring harness fixing brackets 38 of the steering knuckle 31 and the vehicle body longitudinal beam 32 is a bent structure with a stretch allowance to accommodate wheel bounce and steering. This stretch allowance avoids interference during steering and wheel bounce. The front suspension high-voltage wiring harness 35 located between the front end and rear end of the vehicle body longitudinal beam 32 is arranged approximately along the X-axis of the vehicle body. This part of the front suspension high-voltage wiring harness 35 does not participate in the wheel bounce and steering process and is arranged along the vehicle body longitudinal beam 32, so it can be directly fixed. The front suspension high-voltage wiring harness 35 located between the rear end of the vehicle body longitudinal beam 32 and the on-board MCU is shorter, structurally stable, and less prone to shaking.

[0090] In this embodiment, the first high-voltage wiring harness fixing bracket 38 can be a cable tie, a buckle, or other type of structure, as long as it can satisfy the function of fixing the front suspension high-voltage wiring harness 35. It can fix the front suspension high-voltage wiring harness 35 to the steering knuckle 31, the front end of the body longitudinal beam 32, and the rear end of the body longitudinal beam 32.

[0091] The front suspension mounting bracket includes multiple first low-voltage wiring harness mounting brackets 39, such as... Figures 7-11 As shown, multiple first low-voltage wiring harness fixing brackets 39 are arranged sequentially at intervals along the extension direction of the low-voltage wiring harness, and are used to fix the front suspension low-voltage wiring harness 36 to the stator housing 5 and the steering knuckle 31, shock absorber 33 and body longitudinal beam 32 in the front suspension.

[0092] like Figures 7-11As shown, the front suspension low-voltage wiring harness 36 in this embodiment is relatively long, and a total of six first low-voltage wiring harness fixing brackets 39 are provided. These brackets are used to fix the front suspension low-voltage wiring harness 36 to the stator housing 5, to the steering knuckle 31 (there are two first low-voltage wiring harness fixing brackets 39 on the steering knuckle 31), to the shock absorber 33, to the front end of the vehicle body longitudinal beam 32, and to fix the front suspension low-voltage wiring harness 36 to the front end of the vehicle body longitudinal beam 32. The wiring harness 36 is fixed at the rear end of the body longitudinal beam 32. The first low-voltage wiring harness fixing bracket 39 can adopt a snap-fit ​​structure, that is, a snap-fit ​​structure is reserved at the front end of the stator housing 5, the steering knuckle 31, the shock absorber 33, the body longitudinal beam 32, and the rear end of the body longitudinal beam 32. Then, when installing the front suspension low-voltage wiring harness 36, the snap-fit ​​structure on the front suspension low-voltage wiring harness 36 is directly fixed into the corresponding snap-fit, thus completing the fixing of the front suspension low-voltage wiring harness 36.

[0093] For the front suspension low-voltage wiring harness 36, the section 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 its fixation on the stator housing 5 is extremely stable, so no special design is required. The section between the first low-voltage wiring harness fixing bracket 39 at the front end of the vehicle longitudinal beam 32 and the first low-voltage wiring harness fixing bracket 39 on the shock absorber 33 is relatively long and needs to accommodate wheel bounce and steering. The first low-voltage wiring harness fixing bracket 39 before the shock absorber 33 follows... Since the motor jogs and steers, the front suspension low-voltage wiring harness 36, located at the front end of the vehicle longitudinal beam 32 and between the two first low-voltage wiring harness fixing brackets 39 of the shock absorber 33, is a bent structure with a stretch allowance to accommodate wheel jogging and steering. The front suspension low-voltage wiring harness 36, located 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. This part of the front suspension low-voltage wiring harness 36 does not participate in the adaptation process of wheel jogging and steering, so it can be fixed without any other arrangement.

[0094] In this embodiment, the front suspension high-voltage wiring harness 35 and the front suspension low-voltage wiring harness 36 are positioned separately. The front suspension high-voltage wiring harness 35 is directly connected from the stator housing 5 to the steering knuckle 31, then arranged along the vehicle longitudinal beam 32, and finally connected to the on-board MCU. The front suspension low-voltage wiring harness 36 is fixed to the stator housing 5 before connecting to the steering knuckle 31, then to the shock absorber 33, then arranged along the vehicle longitudinal beam 32, and finally connected to the in-vehicle communicator. In areas accommodating wheel bounce and steering, the front suspension high-voltage wiring harness 35 and the front suspension low-voltage wiring harness 36 are separated in the Z-direction. The front suspension high-voltage wiring harness 35 located between the steering knuckle 31 and the front end of the vehicle longitudinal beam 32, and the front suspension low-voltage wiring harness 36 located between the steering knuckle 31 and the shock absorber 33, are isolated from each other in the Z-direction, preventing entanglement.

[0095] The front suspension mounting bracket of this embodiment includes a plurality of first water pipe mounting brackets 310, which are arranged sequentially at intervals along the extension direction of the cooling water pipe, for fixing the front suspension cooling water pipe 37 to the steering knuckle 31 and the front bracket 34 in the front suspension.

[0096] like Figures 12-14 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 and fixed to the front bracket 34 through the other first water pipe fixing bracket 310, and finally connected to the radiator of the vehicle body.

[0097] The front suspension cooling water pipe 37 located between the first water pipe fixing bracket 310 on the steering knuckle 31 and the water cooling pipe interface 53 is relatively short, so it can be directly fixed and installed. The front suspension cooling water pipe 37 located 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 relatively long, and is arranged approximately along the Y direction of the vehicle body. It needs to participate in wheel bounce and steering. Therefore, the front suspension cooling water pipe 37 located between the two first water pipe fixing brackets 310 on the steering knuckle 31 and the front bracket 34 is a bent structure with a flexibility to accommodate wheel bounce and steering. The front suspension cooling water pipe 37 located between the first water pipe fixing bracket 310 on the front bracket 34 and the radiator does not participate in wheel bounce and steering, so it can be directly fixed and installed.

[0098] In this embodiment, the front suspension high-voltage wiring harness 35, the front suspension low-voltage wiring harness 36, and the front suspension cooling water pipe 37 are all fixedly connected to the stator housing 5 and the steering knuckle 31. For areas prone to entanglement and interference, the front suspension high-voltage wiring harness 35, the front suspension low-voltage wiring harness 36, and the front suspension cooling water pipe 37 are separated in the Z-direction to prevent entanglement. Specifically, the front suspension high-voltage wiring harness located between the two first high-voltage wiring 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 located between the two first water pipe fixing brackets 310 at the front end of the steering knuckle 31 and the front bracket 34, and the front suspension low-voltage wiring harness located between the front end of the vehicle body longitudinal beam 32 and the two first low-voltage wiring harness fixing brackets 39 at the front end of the shock absorber 33 are arranged at intervals along the Z-direction.

[0099] The first water pipe fixing bracket 310 in this embodiment can adopt a snap-fit ​​structure. By setting a snap-fit ​​structure on the steering knuckle 31 and the front bracket 34, and installing a corresponding snap-fit ​​on the front suspension cooling water pipe 37, the snap-fit ​​on the front suspension cooling water pipe 37 can be directly snapped onto the snap-fit ​​structure on the steering knuckle 31 and the front bracket 34 when installing the front suspension cooling water pipe 37, thereby completing the fixing of the front suspension cooling water pipe 37 to the steering knuckle 31 and the front bracket 34.

[0100] In practical applications, the structure is not limited to the 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 mentioned above; any structure that can meet the corresponding requirements is acceptable.

[0101] In other embodiments of this application, the rear suspension fixing bracket described above has been optimized, specifically, as follows: Figures 16-26 As shown, the rear suspension fixing bracket includes multiple second high-voltage wiring harness fixing brackets 47, which are arranged sequentially and at intervals along the extension direction of the rear suspension high-voltage wiring harness 44, and are used to fix the rear suspension high-voltage wiring harness 44 to the joint head 41 and the rear bracket 43 in the rear suspension.

[0102] like Figures 16-19As shown, this embodiment has two second high-voltage wiring harness fixing brackets 47, which are used to fix the rear suspension high-voltage wiring harness 44 to the joint head 41 and to fix the rear suspension high-voltage wiring harness 44 to the rear bracket 43, respectively. That is to say, there are four fixing points for the rear suspension high-voltage wiring harness 44, namely the stator housing 5, the joint head 41, the rear bracket 43, and the vehicle MCU (the interface corresponding to the vehicle MCU at the rear of the vehicle). The rear suspension high-voltage wiring 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 wiring harness 44 between the joint head 41 and the rear bracket 43 is very short. The rear suspension high-voltage wiring harness 44 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, which needs to cope with wheel bounce. 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 bent structure with a stretching allowance to adapt to wheel bounce. The stretching allowance can avoid the problem of entanglement and interference during wheel bounce. The rear suspension high-voltage wiring harness 44 between the rear bracket 43 and the vehicle MCU is shorter, has a stable structure, and is not prone to shaking.

[0103] The second high-voltage harness fixing bracket 47 in this embodiment can be a cable tie, a buckle, or other type of structure, as long as it can satisfy the function of fixing the rear suspension high-voltage harness 44 and has the function of fixing the rear suspension high-voltage harness 44 to the joint head 41 and the rear bracket 43.

[0104] The rear suspension fixing bracket in this embodiment includes a plurality of second low-voltage wiring harness fixing brackets 48, which are arranged sequentially at intervals along the extension direction of the rear suspension low-voltage wiring harness 45, and are used to fix the rear suspension low-voltage wiring harness 45 to the joint head 41 and the rear bracket 43 in the rear suspension.

[0105] like Figures 20-24 As shown, in this embodiment, the rear suspension low-voltage wiring harness 45 is longer than the rear suspension high-voltage wiring harness 44. A total of four second low-voltage wiring harness fixing brackets 48 are provided, which are 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 (two second low-voltage wiring harness fixing brackets 48 are provided on 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 brackets 48 can adopt a snap-fit ​​structure, that is, snap-fit ​​structures are reserved on the joint head 41, spring arm 42, and rear bracket 43. Then, when installing the rear suspension low-voltage wiring harness 45, the snap-fit ​​structures on the rear suspension low-voltage wiring harness 45 are directly fixed into the corresponding snap-fit, thereby completing the fixing of the rear suspension low-voltage wiring harness 45.

[0106] For the rear suspension low-voltage wiring harness 45, the section 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 its fixation on the stator housing 5 is extremely stable, so no special design is required. The section 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 bounce. Therefore, the section between the two second low-voltage wiring harness fixing brackets 48 on the joint head 41 and the spring arm 42 is a bent structure with a stretch allowance to adapt to wheel bounce. The section between the second low-voltage wiring harness fixing bracket 48 on the spring arm 42 and the in-vehicle communicator is fixed by a second low-voltage wiring harness fixing bracket 48, and this part of the rear suspension low-voltage wiring harness 45 does not participate in the wheel bounce adaptation process, so it only needs to be fixed and no other arrangement is required.

[0107] In this embodiment, the rear suspension high-voltage wiring harness 44 and the rear suspension low-voltage wiring harness 45 are arranged separately in terms of position. The rear suspension high-voltage wiring harness 44 is directly connected from the stator housing 5 to the joint head 41, and then to the rear bracket 43; while in this embodiment, the rear suspension low-voltage wiring harness 45 is led out from the stator housing 5, connected to the joint head 41, then to the spring arm 42, and finally to the rear bracket 43. The rear suspension low-voltage wiring harness 45 between the joint head 41 and the rear bracket 43 is separated by a second low-voltage wiring harness fixing bracket 48 on the spring arm 42. The connection points of the rear suspension low-voltage wiring harness 45 and the rear bracket 43, and the connection points of the rear suspension high-voltage wiring harness 44 and the rear bracket 43, are spaced apart in the X-direction. Since the rear wheels of the vehicle only have wheel bounce and do not involve steering, the rear suspension low-voltage wiring harness 45 and the rear suspension high-voltage wiring harness 44 can only generate relative movement along the Z-direction, and there is no relative movement along the X and Y directions. By separating them in the X-direction, the rear suspension low-voltage wiring harness 45 and the rear suspension high-voltage wiring harness 44 located between the joint head 41 and the rear bracket 43 will not have the problem of entanglement and interference.

[0108] The rear suspension fixing bracket in this embodiment includes a plurality of second water pipe fixing brackets 49, which are arranged sequentially at intervals 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.

[0109] like Figure 25 , 26 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 brackets 49, and finally connected to the motor water pipe assembly of the vehicle body.

[0110] The rear suspension cooling water pipe 46 located between the second water pipe fixing bracket 49 on the joint head 41 and the water cooling pipe interface 53 is relatively short, so it can be directly fixed and installed. The rear suspension cooling water pipe 46 located 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 relatively long, and is arranged approximately along the Y direction of the vehicle body. It needs to participate in the wheel bounce. Therefore, the rear suspension cooling water pipe 46 located between the two second water pipe fixing brackets 49 on the joint head 41 and the rear bracket 43 is a bent structure with a flexibility to accommodate wheel bounce. The rear suspension cooling water pipe 46 located between the second water pipe fixing bracket 49 on the rear bracket 43 and the motor water pipe assembly does not participate in the wheel bounce adaptation and can be directly fixed and installed.

[0111] In this embodiment, 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 all fixedly connected to the stator housing 5 and the joint head 41. For areas prone to entanglement and interference, 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 located 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 located 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 located between the two second water pipe fixing brackets 49 of the joint head 41 and the rear bracket 43 are arranged at intervals in the X-direction, so there will be no problem of mutual entanglement.

[0112] The second water pipe fixing bracket 49 in this embodiment can adopt a snap-on structure. By setting a snap-on structure on the joint head 41 and the rear bracket 43, a corresponding snap-on is installed on the rear suspension cooling water pipe 46. Then, when installing the rear suspension cooling water pipe 46, the snap-on on the rear suspension cooling water pipe 46 is directly snapped onto the snap-on structure on the joint head 41 and the rear bracket 43, thus fixing the rear suspension cooling water pipe 46 to the joint head 41 and the rear bracket 43.

[0113] In practical applications, the structure is not limited to 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 mentioned above; any structure that meets the corresponding requirements is acceptable.

[0114] In other embodiments of this application, the above-described rim 1 and hub motor structure have been optimized, specifically, as follows: Figures 28-30 As shown, the rim 1 in this embodiment 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 makes it easier to install and arrange the hub motor.

[0115] The hub motor in this embodiment includes an outer rotor housing 2. The wheel hub motor wheel-side integrated structure of this embodiment mainly describes the connection structure between the hub motor and the wheel 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 wheel rim 1 and rotates with the wheel. The stator housing 5 does not rotate and is fixedly connected to the vehicle suspension. The outer rotor housing 2 is fitted inside the wheel rim 1, making full use of the internal space of the wheel rim 1 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 wheel rim 1, while the end of the outer rotor housing 2 closer to the vehicle body is rotatably connected to the stator housing 5 around its axis.

[0116] In this embodiment, a first connecting structure is provided at the end of the wheel rim 1 away from the vehicle body, and a second connecting structure is provided at the end of the outer rotor housing 2 away from the vehicle body. The first connecting structure and the second connecting structure are corresponding to each other, and the outer rotor housing 2 and the wheel rim 1 are fixedly connected as one unit through the first connecting structure and the second connecting structure.

[0117] The outer rotor housing 2 is fixed inside the wheel rim 1 by the first connecting structure and the second connecting structure, so that the outer rotor housing 2 and the wheel rim 1 are flush with the end away from the vehicle body.

[0118] In this embodiment, the outer rotor housing 2 of the hub motor is inserted axially into the rim 1, so that the first connecting structure and the second connecting structure fit together and are aligned; connecting bolts are driven into the first connecting structure and the second connecting structure to fix the outer rotor housing 2 and the rim 1 together as one.

[0119] This embodiment also optimizes the first and second connection structures described above, specifically, as follows: Figures 29-30 As shown, the first connecting structure is located on the inner circumference of the wheel rim 1 at the end away from the vehicle body, and the second connecting structure is located on the outer circumference of the outer rotor housing 2 at the end away from the vehicle body. The first connecting structure and the second connecting structure are connected as one unit in the axial direction.

[0120] To maximize the use of the internal space of the rim 1, this embodiment designs the first connecting structure on the inner circumference of the end of the rim 1 furthest from the vehicle body. Therefore, the connection between the rim 1 and the outer rotor housing 2 is located on the inner circumference of the end of the rim 1 furthest from the vehicle body. This connection arrangement minimizes the encroachment of the connecting structure between the rim 1 and the outer rotor housing 2 on the internal space of the rim 1. At the same time, placing the connecting structure near the inner circumference of the end greatly facilitates the assembly of the two components.

[0121] During actual assembly, the end of the outer rotor housing 2 with the second connecting structure is inserted into the wheel rim 1 from the end of the wheel rim 1 closest to the vehicle body along the axial direction of the outer rotor housing 2, so that the second connecting structure and the first connecting structure fit together in the axial direction.

[0122] The outer rotor housing 2 is a cylindrical structure. During assembly, the end with the second connecting structure is inserted into the wheel rim 1 from the end of the wheel rim 1 closest to the vehicle body along the axial direction, so that the second connecting structure and the first connecting structure fit together in the axial direction.

[0123] Furthermore, this embodiment defines the relative positions of the first connecting structure and the second connecting structure during assembly, such as... Figure 27 , 29 As shown in Figure 30, the first connecting structure is located on the side of the second connecting structure away from the vehicle body.

[0124] Therefore, when the end of the outer rotor housing 2 with the second connecting structure is inserted axially into the wheel rim 1 from the end closest to the vehicle body, the end of the outer rotor housing 2 away from the vehicle body does not extend beyond the wheel rim 1. The second connecting structure on the outer rotor housing 2 is located on the side of the first connecting structure of the wheel rim 1 closest to the vehicle body. The outer rotor housing 2 makes maximum use of the internal space of the wheel rim 1 without being exposed and affecting its use.

[0125] This embodiment also optimizes the specific structures of the first and second connection structures described above, such as... Figures 27-30 As shown, the first connecting structure in 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 circumference of the flange 11 is connected to the rim 1, and a plurality of first screw holes 12 are provided on the flange 11 at equal intervals along the circumference. The second connecting structure includes a plurality of ear plates 21 disposed on the outer circumference of the outer rotor housing 2 away from the vehicle body. The plurality of ear plates 21 are arranged at equal intervals along the circumference on the outer rotor housing 2. The ear plates 21 are plate-shaped structures extending radially. A second screw hole 22 is provided on the ear plate 21. The ear plates 21 are fixedly connected to the flange 11 by bolts passing through the first screw hole 12 and the second screw hole 22 along the axial direction.

[0126] The flange 11 and the ear plate 21 are corresponding structures, with the side of the flange 11 facing the vehicle body and the side of the ear plate 21 facing away from the vehicle body fitting tightly together. The first screw holes 12 on the flange 11 and the second screw holes 22 on the ear plate 21 are arranged at equal intervals along the circumference and correspond one-to-one. They are fixedly connected as one unit by bolts passing through the first screw holes 12 and the second screw holes 22.

[0127] During actual assembly, the end of the outer rotor housing 2 with the ear plate 21 is inserted into the rim 1 from the end closest to the vehicle body along the axial direction of the outer rotor housing 2, so that the ear plate 21 and the flange 11 fit together in the axial direction, with the ear plate 21 on the side of the flange 11 facing the vehicle body; the outer rotor housing 2 and the rim 1 are rotated around the axis, 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 bolts are driven in a symmetrical manner with the axis of the rim 1 as the center, until all bolts are driven in, thus completing the connection between the rim 1 and the outer rotor housing 2.

[0128] Furthermore, in this embodiment, a rivet nut is installed at the end of the bolt located on one side of the flange 11. The rivet nut can protect the exposed end of the bolt on the one hand, and 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.

[0129] In actual assembly, the following steps are taken: the end of the outer rotor housing 2 with the lug plate 21 is inserted into the rim 1 from the end of the rim 1 closest to the vehicle body along the axial direction of the outer rotor housing 2, so that the lug plate 21 and the flange 11 fit together in the axial direction, with the lug plate 21 on the side of the flange 11 facing the vehicle body; the outer rotor housing 2 and the rim 1 are rotated around the axis, 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 aligned first screw hole 12 and second screw hole 22 from the side of the rim 1 away from the vehicle body, and the bolts are driven in a symmetrical manner with the axis of the rim 1 as the center, until all the bolts are driven in, thus completing the fixed connection between the rim 1 and the outer rotor housing 2;

[0130] Install the stator housing 5 and the suspension, and fix the stator housing 5 of the front wheel and the front suspension to the front wheel respectively, and fix the stator housing 5 of the rear wheel and the rear suspension to the rear wheel.

[0131] The front suspension wiring harness and water pipe are assembled. One end of the front suspension high voltage wiring harness 35 is connected to the high voltage wiring harness interface 51 of the stator housing 5 of the front wheel. The front suspension high voltage wiring harness 35 is fixed to the steering knuckle 31, the front end of the body longitudinal beam 32, and the rear end of the body longitudinal beam 32 in sequence using multiple first high voltage wiring harness fixing brackets 38. Finally, the end of the front suspension high voltage wiring harness 35 is inserted into the vehicle MCU. When fixing the front suspension high voltage wiring harness 35 using the first high voltage wiring harness fixing brackets 38, the front suspension high voltage wiring harness 35 between the two first high voltage wiring harness fixing brackets 38 of the steering knuckle 31 and the body longitudinal beam 32 is arranged into a bent structure with a telescoping allowance to accommodate wheel bounce and steering.

[0132] One end of the front suspension low-voltage wiring harness 36 is connected to the low-voltage wiring harness interface 52 of the stator housing 5 of the front wheel. Multiple first low-voltage wiring harness fixing brackets 39 are used to fix the front suspension low-voltage wiring harness 36 to the stator housing 5, steering knuckle 31, shock absorber 33, front end of body longitudinal beam 32, and rear end of body longitudinal beam 32 in sequence. Finally, the end of the front suspension low-voltage wiring harness 36 is inserted into the vehicle communication device. When fixing the front suspension low-voltage wiring harness 36 with the first low-voltage wiring harness fixing brackets 39, the front suspension low-voltage wiring harness 36 located between the front end of body longitudinal beam 32 and the two first low-voltage wiring harness fixing brackets 39 of shock absorber 33 is arranged into a bent structure with a telescoping allowance to accommodate wheel bounce and steering.

[0133] 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. The front suspension cooling water pipe 37 is then fixed to the steering knuckle 31 and the front bracket 34 in sequence using multiple first water pipe fixing brackets 310. Finally, the end of the front suspension cooling water pipe 37 is inserted into the vehicle radiator. When fixing the front suspension cooling water pipe 37 using the first water pipe fixing brackets 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 bent structure with a flexibility to accommodate wheel bounce and steering.

[0134] The rear suspension wiring harness and water pipe are assembled. One end of the rear suspension high voltage wiring harness 44 is connected to the high voltage wiring harness interface 51 of the stator housing 5 of the rear wheel. The rear suspension high voltage wiring harness 44 is fixed to the joint head 41 and the rear bracket 43 in sequence using multiple second high voltage wiring harness fixing brackets 47. Finally, the end of the rear suspension high voltage wiring harness 44 is inserted into the vehicle MCU. When fixing the rear suspension high voltage wiring harness 44 using the second high voltage wiring harness fixing brackets 47, the rear suspension high voltage wiring harness 44 between the two second high voltage wiring harness fixing brackets 47 of the joint head 41 and the rear bracket 43 is arranged into a bent structure with a telescoping allowance to accommodate wheel bounce.

[0135] One end of the rear suspension low-voltage wiring harness 45 is connected to the low-voltage wiring harness interface 52 of the stator housing 5 of the rear wheel. The rear suspension low-voltage wiring harness 45 is then fixed to the joint head 41, the spring arm 42, and the rear bracket 43 in sequence using multiple second low-voltage wiring harness fixing brackets 48. Finally, the end of the rear suspension low-voltage wiring harness 45 is inserted into the vehicle communication device. When fixing the rear suspension low-voltage wiring harness 45 using the second low-voltage wiring harness fixing brackets 48, the rear suspension low-voltage wiring harness 45 located between the two second low-voltage wiring harness fixing brackets 48 of the joint head 41 and the spring arm 42 is arranged in a bent structure with a telescoping allowance to accommodate wheel bounce.

[0136] 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. The rear suspension cooling water pipe 46 is fixed to the joint head 41 using multiple 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 fixing the rear suspension cooling water pipe 46 using the second water pipe fixing brackets 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 bent structure with a telescoping allowance to accommodate wheel bounce.

[0137] Complete the assembly of the hub motor with the wheel rim 1, suspension, wiring harness and piping structure.

[0138] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. An integrated structure for wheel hub motor wheel-side pipeline, characterized in that: The system includes a wheel rim, a hub motor, and a suspension. The hub motor includes an outer rotor housing fixedly connected to the wheel rim and a stator housing fixedly connected to the suspension. The stator housing has a high-voltage wiring harness interface, a low-voltage wiring harness interface, and a water-cooling pipe interface at one end near 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. Multiple fixing structures for securing the high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe are provided between the stator housing and the suspension. The high-voltage wiring harness, low-voltage wiring harness, and cooling water pipe between adjacent fixing structures have sufficient expansion and contraction allowance to accommodate wheel movement and / or steering. The fixing structure includes a front suspension fixing bracket disposed between the stator housing and the vehicle front suspension; the front suspension fixing bracket includes a plurality of first high-voltage wiring harness fixing brackets for fixing and constraining the front suspension high-voltage wiring harness; the plurality of first high-voltage wiring harness fixing brackets are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension high-voltage wiring harness, fixing the front suspension high-voltage wiring harness to the steering knuckle, the front end of the vehicle body longitudinal beam and the rear end of the vehicle body longitudinal beam, and the front suspension high-voltage wiring harness between the two first high-voltage wiring harness fixing brackets at the front end of the steering knuckle and the vehicle body longitudinal beam is a bent structure with a stretching allowance to accommodate wheel bounce and steering.

2. The hub motor wheel-side pipeline integrated structure as described in claim 1, characterized in that: The front suspension mounting bracket includes multiple first low-voltage wiring harness mounting brackets, which are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension low-voltage wiring harness, and fix the front suspension low-voltage wiring harness to the stator housing and the steering knuckle, shock absorber, and body longitudinal beam in the front suspension; the front suspension low-voltage wiring harness located between the two first low-voltage wiring harness mounting brackets of the body longitudinal beam and the shock absorber is a bent structure with a stretch allowance to accommodate wheel bounce and steering.

3. The hub motor wheel-side pipeline integrated structure as described in claim 2, characterized in that: The front suspension mounting bracket includes multiple first water pipe mounting brackets, which are arranged sequentially and at intervals from the front wheel to the vehicle body along the extension direction of the front suspension cooling water pipe, and fix the front suspension cooling water pipe to the steering knuckle and the front bracket in the front suspension; the front suspension cooling water pipe between the two first water pipe mounting brackets of the steering knuckle and the front bracket is a bent structure with a flexibility to accommodate wheel bounce and steering.

4. The hub motor wheel-side pipeline integrated structure as described in claim 3, characterized in that: The front suspension high-voltage wiring harness located between the two first high-voltage wiring harness fixing brackets at the front end of the steering knuckle and the front longitudinal beam, the front suspension cooling water pipe located between the two first water pipe fixing brackets at the front end of the steering knuckle and the front bracket, and the front suspension low-voltage wiring harness located between the two first low-voltage wiring harness fixing brackets at the front end of the longitudinal beam and the shock absorber are arranged at intervals along the Z direction.

5. The hub motor wheel-side pipeline integrated structure as described in claim 1, characterized in that: The fixing structure includes a rear suspension fixing bracket disposed between the stator housing and the vehicle's rear suspension; the rear suspension fixing bracket includes multiple second high-voltage wiring harness fixing brackets, which are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the rear suspension high-voltage wiring harness, thereby fixing the rear suspension high-voltage wiring harness to the joint head and rear bracket in the rear suspension; the rear suspension high-voltage wiring harness located between two second high-voltage wiring harness fixing brackets of the joint head and the rear bracket is a bent structure with a stretch allowance to accommodate wheel bounce.

6. The hub motor wheel-side pipeline integrated structure as described in claim 5, characterized in that: The rear suspension mounting bracket includes multiple second low-voltage wiring harness mounting brackets, which are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the rear suspension low-voltage wiring harness, fixing the rear suspension low-voltage wiring harness to the joint head, spring arm and rear bracket in the rear suspension; the rear suspension low-voltage wiring harness located between the two second low-voltage wiring harness mounting brackets of the joint head and spring arm is a bent structure with a stretch allowance to accommodate wheel bounce.

7. The hub motor wheel-side pipeline integrated structure as described in claim 6, characterized in that: The rear suspension fixing bracket includes multiple second water pipe fixing brackets, which are arranged sequentially and at intervals from the rear wheel to the vehicle body along the extension direction of the cooling water pipe, fixing the rear suspension cooling water pipe to the joint head in the rear suspension; the rear suspension cooling water pipe located between the joint head and the two second water pipe fixing brackets of the rear bracket is a bent structure with a flexibility to accommodate wheel bounce.

8. The hub motor wheel-side pipeline integrated structure as described in claim 7, characterized in that: The rear suspension high-voltage wiring harness located between the two second high-voltage wiring harness fixing brackets of the joint head and the rear bracket, the rear suspension low-voltage wiring harness located between the two second low-voltage wiring harness fixing brackets of the joint head and the spring arm, and the rear suspension cooling water pipe located between the two second water pipe fixing brackets of the joint head and the rear bracket are arranged at intervals along the X direction.

9. A car, characterized in that: The vehicle is equipped with any one of the wheel hub motor wheel-side pipeline integrated structures as described in claims 1 to 8.

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