Cooling medium transmission device and vehicle

Abstract

The utility model belongs to the technical field of vehicle parts, and particularly relates to a cooling medium conveying device and a vehicle. The cooling medium transmission device for the wheel hub motor is applied between a steering piece and a vehicle body, the cooling medium transmission device comprises at least one pipeline assembly, and each pipeline assembly comprises a bogie connecting piece connected to the steering piece; the vehicle body connecting piece is connected to a vehicle body; one end of the pipeline piece is fixed to the vehicle body through the vehicle body connecting piece, and the other end of the pipeline piece is rotationally connected to the bogie connecting piece; when the steering piece rotates on the XY plane based on the vehicle body coordinate system, the end, connected with the bogie connecting piece, of the pipeline piece rotates and changes along with the position of the steering piece. And the pipeline piece is gradually bent or elongated along with the rotation of the steering piece, and the pipeline piece can be designed to be shorter, so that the requirement of a hose design specification is met, meanwhile, the pipeline piece is prevented from being twisted or extruded in the rotation process, and the continuous transmission of the cooling medium is ensured not to be influenced.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle parts, and specifically designs a cooling medium transmission device and a vehicle. Background Art

[0002] The water pipe connecting the hub motor bogie and the vehicle frame (body) is commonly seen in the prior art structure. Figure 1 As shown, the existing structure includes a steel belt type elastic hoop q1, a two-way joint q2, a connecting hose q3 from the bogie to the vehicle body (frame), and a connecting hose q4 from the bogie to the wheel hub motor.

[0003] The steel belt type elastic hoop q1 is a device used to fix and support the water pipe, and usually has a certain degree of elasticity to cope with a certain degree of vibration or displacement. The two-way joint q2 is used to connect two water pipes or the interfaces between the water pipe and other components, allowing coolant to circulate in the system. The connecting hose q3 from the bogie to the body (frame) is a section of hose that connects the water pipe interface on the bogie and the water pipe interface on the body (frame) to allow a certain degree of relative movement during vehicle driving. The connecting hose q4 from the bogie to the hub motor: Similarly, this section of hose connects the water pipe interface on the bogie and the water pipe interface on the hub motor to provide coolant to the hub motor.

[0004] Existing pipe connection methods are primarily suitable for scenarios where there is little or no relative movement between the two ends of the pipe, such as the connection between an engine and a radiator. In these cases, the hose length can be designed based on the maximum possible displacement between the two ends to prevent damage when the hose is pulled.

[0005] And as Figure 2 A notable feature of in-wheel motor vehicles is that the wheels can rotate 90° along with the bogie, which greatly increases the position change of the water pipe interface on the bogie during steering. In order to prevent the water pipe from being excessively pulled during steering, the required length of the water pipe between the bogie and the body (frame) at the extreme position may exceed 1000mm. However, this exceeds the requirements of the hose design specifications and may cause the hose to be damaged due to excessive stretching during long-term use. In addition, during wheel steering, the water pipe may be twisted due to the relative movement between the bogie and the body (frame). This twisting may not only damage the hose, but may also cause the coolant to be blocked inside the hose, thereby affecting the normal operation of the cooling system. The lack of coolant circulation will cause the in-wheel motor to overheat, which in turn affects the performance and safety of the vehicle.

[0006] Therefore, this application is specially filed. Utility Model Content

[0007] In order to solve the above problems, it is necessary to develop a cooling medium transmission device and a vehicle for a vehicle.

[0008] According to one aspect of the present application, a cooling medium transmission device for a hub motor is provided, which is applied between a steering member and a vehicle body. The cooling medium transmission device includes at least one pipe assembly, each pipe assembly including: a bogie connector connected to the steering member; a vehicle body connector connected to the vehicle body; and a pipe member, one end of which is fixed to the vehicle body through the vehicle body connector and the other end of which is rotatably connected to the bogie connector; when the steering member rotates in an XY plane based on a vehicle body coordinate system, the end of the pipe member connected to the bogie connector rotates and changes with the position of the steering member.

[0009] In a preferred embodiment of the present application, there are multiple pipe assemblies, and the multiple pipe assemblies include a first pipe assembly and a second pipe assembly, and the first pipe assembly and the second pipe assembly are connected to form a loop; wherein, the bogie connector of the first pipe assembly and the bogie connector of the second pipe assembly are spaced apart in the Z direction and have different lengths in the Y direction.

[0010] In the preferred solution of the present application, the bogie connecting member includes: a channel structure, including a channel portion and a flange portion, the channel portion is installed on the steering member through the flange portion and partially protrudes from the flange portion; a rotating structure, one end of the rotating structure is sleeved on the channel portion of the protruding portion and can rotate relative to the channel portion, and the other end is fixedly connected to the end of the pipe member.

[0011] In a preferred solution of the present application, the flange portion is fixedly connected to the outer periphery of the channel portion and is connected to the steering member via threads.

[0012] In a preferred embodiment of the present application, the rotating structure includes a joint housing, which includes a first housing and a second housing that are interconnected; the end of the first housing is sleeved on the channel portion, and the pipe member is sleeved on the end of the second housing; wherein the first housing and the second housing are arranged at an angle.

[0013] In a preferred solution of the present application, the first shell includes a first section and a second section connected in sequence, the first inner diameter of the first section matches the channel portion, and the second inner diameter of the second section is larger than the first inner diameter; the rotating structure also includes at least one sealing ring and at least one gear ring arranged in the second section; the sealing ring is sleeved on the outer periphery of the channel portion, and the gear ring is connected to the inner wall of the second section, and is located on at least one side of the sealing ring along the axial direction of the channel portion.

[0014] In the preferred solution of the present application, there are two sealing rings, and there are two gear rings including a first gear ring and a second gear ring. The first gear ring is located between the two sealing rings, and the second gear ring and the first gear ring are spaced apart with a sealing ring between them.

[0015] In a preferred solution of the present application, the retaining ring and the channel portion are clearance-fitted so that the joint housing can rotate axially along the channel portion.

[0016] In the preferred solution of the present application, the rotating structure also includes a snap-fit structure, and the first shell also includes a third section connected to the second section, and the third inner diameter of the third section is larger than the second inner diameter; the snap-fit structure is arranged in the third section, and a flange structure is correspondingly provided on the outer periphery of the channel portion, and the snap-fit structure and the flange structure cooperate with each other to constrain the channel portion to move axially.

[0017] In a preferred solution of the present application, the bogie connector also includes a connecting mechanism, which includes a first hose, a first hoop and a second hoop; wherein the first hose is sleeved on the end of the channel portion away from the rotating structure and is fastened by the first hoop; the second hoop fastens the pipe member to the second shell.

[0018] In a preferred solution of the present application, a plurality of relatively protruding shaft rings are provided on the outer periphery of the second shell, and the pipe member is sleeved on the second shell and fastened by a second hoop.

[0019] In a preferred solution of the present application, the cooling medium transmission device further includes a clamp structure, which clamps the first pipeline assembly and the second pipeline assembly along the Z direction.

[0020] The second aspect of the present application also provides a vehicle, comprising: a steering member, including a hub motor and connected to a single wheel, for driving and performing wheel steering; a body, connected to the wheel through the steering member; and a cooling medium transmission device as described above, the cooling medium transmission device being arranged between the steering member and the body.

[0021] The cooling medium transmission device for an in-wheel motor provided by the present application is fixedly connected to the steering member via a bogie connector. The body connector is fixedly connected to the vehicle body, ensuring the stability of the pipe member on the vehicle body side. The pipe member is connected to the vehicle body and the steering member via the body connector and bogie connector, respectively, at both ends. The end connected to the bogie connector is configured to be rotatable to accommodate rotation of the steering member.

[0022] When the vehicle turns, the steering member drives the wheel to rotate in the XY plane. Due to the rotatable connection between the pipe member and the bogie connector, the rotational freedom of one end of the pipe member can be released, and the pipe member gradually bends or stretches as the steering member rotates. The pipe member can be designed to be shorter to meet the requirements of the hose design specifications while taking into account that it will not twist or squeeze during the rotation process, so as to ensure that the continuous transmission of the cooling medium is not affected. The body connector provides a stable fixing point for the pipe member, reducing the impact of vibration and bumps on the pipe member during vehicle driving, and improving the overall stability of the system. By ensuring the smooth transmission of the cooling medium between the hub motor and the cooling system, the device can effectively reduce the temperature of the hub motor and improve its working efficiency and life.

[0023] Other features and advantages of the embodiments of the present application will be described in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0025] Figure 1 A schematic diagram illustrating the structure of a cooling medium transmission device in the prior art;

[0026] Figure 2 A schematic diagram illustrating the structure of a transmission device of the prior art assembled on a vehicle;

[0027] Figure 3 A schematic diagram of the structure of the cooling medium transmission device provided by an embodiment of the present invention when assembled under a vehicle (XY perspective when viewed from above);

[0028] Figure 4 A schematic diagram of the structure of the cooling medium transmission device provided by an embodiment of the present invention when assembled on a vehicle (YZ perspective when viewed from the front);

[0029] Figure 5 A schematic structural diagram of a cooling medium transmission device provided in an embodiment of the present utility model;

[0030] Figure 6 A schematic diagram of the structure of the cooling medium transmission device provided by an embodiment of the present invention when assembled on a vehicle (XZ perspective when viewed from the side); and

[0031] Figures 7 to 11 All are provided by the embodiments of the present utility model Figure 5 Cross-sectional view at AA.

[0032] Reference numerals:

[0033] 100. Cooling medium transmission device;

[0034] 10. Pipe assembly; 10a. First pipe assembly; 10b. Second pipe assembly;

[0035] 11. Bogie connector; 12. Carbody connector; 13. Pipeline components; 14. Clip structure;

[0036] 111, channel structure; 111a, channel portion; 111b, flange structure; 1111, flange structure;

[0037] 112, rotating structure; 1121, joint housing; 1121a, first housing; 1121b, second housing;

[0038] 1122, sealing ring; 1123, gear ring; 1123a, first gear ring; 1123b, second gear ring; 1124, buckle structure;

[0039] 113, connecting mechanism; 113a, first hose; 113b, first hoop; 113c, second hoop;

[0040] 200, steering parts; 300, body; 400, wheels. DETAILED DESCRIPTION

[0041] In the description of this application, features qualified by "first" or "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features. Features qualified by "first" or "second" may explicitly or implicitly include at least one of the qualified features. If the term "plurality" appears in the description, it generally means at least two, such as two or three, unless otherwise specifically qualified.

[0042] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0043] like Figures 3 to 6 , a cooling medium transmission device 100 for a hub motor provided by an embodiment of the present invention, the cooling medium transmission device 100 is applied between the steering member 200 and the vehicle body 300, and the cooling medium transmission device 100 includes at least one pipeline assembly 10, each pipeline assembly 10 includes: a bogie connecting member 11, a vehicle body connecting member 12 and a pipeline member 13.

[0044] Based on a general utility model concept of the present invention, the bogie connecting member 11 is connected to the steering member 200; the body connecting member 12 is connected to the body 300; and one end of the pipe member 13 is fixed to the body 300 through the body connecting member 12, and the other end is rotatably connected to the bogie connecting member 11; when the steering member 200 rotates in the XY plane based on the body coordinate system, the end of the pipe member 13 connected to the bogie connecting member 11 rotates and changes with the position of the steering member 200 to gradually bend or gradually stretch.

[0045] In the present embodiment, a "wheel hub motor" refers to a motor that directly converts electrical energy into mechanical energy to drive the wheels. This allows each wheel of the vehicle to be independently controlled, enabling functions such as crab walking and pivoting. However, since the wheel hub motor generates heat during operation, an effective cooling system is required to maintain its normal operating temperature. The cooling medium transmission device 100 provided in the present embodiment is designed to transport a cooling medium, such as water or a coolant, to transfer and remove heat.

[0046] The steering member 200 is the vehicle's steering mechanism. In this embodiment, the in-wheel motor and the steering member 200 are integrated, allowing the in-wheel motor to drive the steering member 200 to steer relative to the vehicle body. The vehicle body 300 is the main structure of the vehicle, such as the frame that carries passengers and other components.

[0047] The duct assembly 10 forms the basic unit of the cooling medium transmission device. Its bogie connector 11 is connected to the steering member 200 to allow the duct member 13 to move with it when the steering member 200 rotates. The body connector 12 is connected to the vehicle body 300 to provide a fixed point for the duct member 13, ensuring its positional restraint during vehicle operation. The duct member 13 is a pipe used to transmit the cooling medium. One end of the duct member is fixed to the vehicle body 300 via the body connector, and the other end is connected to the steering member via the bogie connector 11. When the steering member 200 rotates, the position of the bogie connector 11 relative to the vehicle body 300 changes, allowing the duct member 13 to flex or extend.

[0048] Based on the general inventive concept of the embodiments of the present invention, the bogie connector 11 is fixedly connected to the steering member 200. The body connector 12 is fixedly connected to the vehicle body 300, ensuring the stability of the pipe member on the vehicle body side. The ends of the pipe member 13 are connected to the vehicle body and the steering member via the body connector 12 and the bogie connector 11, respectively. The end connected to the bogie connector 11 is rotatably connected to accommodate the rotation of the steering member 200.

[0049] Specifically, when the vehicle turns, the steering member 200 drives the wheels to rotate in the XY plane. Figure 3, the steering members 200 and 200' respectively demonstrate their initial state and state after turning 90 degrees, at which time the wheel 400 is also switched to 400'; due to the rotatable connection between the pipe member 13 and the bogie connecting member 11, the rotational freedom of one end of the pipe member 13 can be released, and the pipe member 13 gradually bends or stretches as the steering member 200 rotates, such as from Figure 3 The pipe member 13 in the figure switches from the solid line position to the dotted line position 13'. It can be seen that based on the above design, the pipe member 13 can be designed to be shorter in length parameters to meet the requirements of the hose design specifications; at the same time, it can also take into account that it will not be twisted or squeezed during the rotation process, so as to ensure that the continuous transmission of the cooling medium is not affected. The vehicle body connector 12 provides a stable fixing point for the pipe member 13, reducing the impact of vibration and bumps during vehicle driving on the pipe member and improving the overall stability of the system. By ensuring the smooth transmission of the cooling medium between the hub motor and the cooling system, the device can effectively reduce the temperature of the hub motor and improve its working efficiency and life.

[0050] It should be noted that all directions in this application are based on the vehicle body coordinate system; that is, the X-axis is the front-to-back direction of the vehicle when it is parallel to the ground. The Y-axis is perpendicular to the X-axis and is horizontally arranged and perpendicular to the X-axis. The Z-axis is perpendicular to the ground and is the height direction of the vehicle.

[0051] In light of the above, the steering member 200 drives the wheel to rotate horizontally, while the rotation plane of the duct member 13 is actually limited to the XZ plane. The duct member 13's ability to rotate within the XZ plane enables it to automatically adjust its degree of bending or elongation when the vehicle turns, thereby maintaining smooth transmission of the cooling medium between the in-wheel motor and the cooling system. The body connector 12 provides a stable fixing point for the duct member 13, improving the stability of the entire cooling system. By ensuring the continuous transmission of the cooling medium, the device can effectively reduce the temperature of the in-wheel motor and reduce the risk of performance degradation and damage due to overheating. This helps to extend the service life of the in-wheel motor and improve the reliability of the entire vehicle.

[0052] It should be noted that the adjustment of the degree of bending or elongation of the pipe member 13 is a dynamic change, meaning it changes from a bent state to a smoother state. It dynamically adjusts its shape based on the motion trajectory and angle of the steering member 200. Specifically, the relative positions of the multiple segments of the pipe member 13 change, allowing the entire pipe to flexibly bend or stretch in three-dimensional space. This should not be understood as elastic deformation of the pipe member 13 itself, such as the elastic or plastic deformation of the pipe member 13 after the steering member 200 turns.

[0053] In this embodiment of the present invention, there are multiple pipe assemblies 10, including a first pipe assembly 10a and a second pipe assembly 10b. The first pipe assembly 10a and the second pipe assembly 10b together form a cooling medium transmission loop at the steering member 200. This design allows the cooling medium to circulate between the two pipe assemblies to exchange heat with the hub motor, ensuring uniform distribution and full utilization of the cooling medium.

[0054] The cooling medium transmission device 100 further includes a clamp structure 14 that secures the first pipe assembly 10a and the second pipe assembly 10b along the Z-direction. By employing the clamp structure 14 for securing, the clamp structure 14 ensures a tight and stable connection between the first pipe assembly 10a and the second pipe assembly 10b in the Z-direction, preventing accidental separation or loosening during rotation.

[0055] Furthermore, in order to avoid interference between the first pipe assembly 10a and the second pipe assembly 10b during vehicle steering, the bogie connectors 11 of the two pipe assemblies are set to have a certain spacing in the Z direction. This spacing ensures that even when the vehicle is turning, the two pipe assemblies will not collide or squeeze each other due to overlap in the vertical direction. At the same time, in addition to the spacing in the vertical direction, the lengths of the bogie connectors 11 of the two pipe assemblies in the horizontal direction Y are also designed to be different. Since vehicle steering mainly occurs in the XY plane, by adjusting the length in the Y direction, it is possible to ensure that the two pipe assemblies maintain sufficient spacing during steering, avoid physical interference, and improve operational stability.

[0056] like Figure 7 The bogie connecting member 11 includes a channel structure 111 and a rotating structure 112; the channel structure 111 includes a channel portion 111a and a flange portion 111b, the channel portion 111a is installed on the steering member 200 through the flange portion 111b and partially protrudes from the flange portion 111b; the rotating structure 112, one end of the rotating structure 112 is sleeved on the protruding portion of the channel portion 111a and is rotatable relative to the channel portion 111a, and the other end is fixedly connected to the end of the pipe member 13.

[0057] It can be understood that the channel portion 111a is the main part of the channel structure 111, and its shape and size are designed to accommodate and guide the cooling medium. The channel portion 111a is firmly connected to the steering member 200 through the flange portion 111b to ensure that it will not fall off or loosen during vehicle driving. At the same time, part of the structure of the channel portion 111a protrudes outside the flange portion 111b. This protruding structure provides space for the installation and rotation of the rotating structure 112. The flange portion 111b serves as a transitional installation portion connecting the channel portion 111a and the steering member 200. The flange portion 111b fixes the channel structure 111 to the steering member 200 by bolts, welding or other fastening methods to facilitate installation and maintenance.

[0058] In this embodiment of the present invention, one end of the rotating structure 112 is sleeved onto the protruding portion of the channel portion 111a and rotates relative to the channel portion 111a, achieving the aforementioned rotation in the XZ plane. This allows the pipe member 13 to rotate freely with the movement of the steering member 200 when the vehicle turns. The other end of the rotating structure 112 is fixedly connected to the end of the pipe member 13. This connection ensures that the pipe member 13 maintains a stable transmission path during rotation, preventing shaking or misalignment from affecting the flow of the cooling medium.

[0059] In a preferred solution of the present invention, the flange portion 111 b is fixedly connected to the outer periphery of the channel portion 111 a and is connected to the steering member 200 through threads.

[0060] Furthermore, the threaded connection between the flange portion 111b and the steering member 200 may also be equipped with components such as sealing gaskets to avoid abnormal noise.

[0061] Further references Figure 8 The rotating structure 112 includes a joint housing 1121, and the joint housing 1121 includes a first housing 1121a and a second housing 1121b that are connected to each other; the end of the first housing 1121a is sleeved on the channel portion 111a, and the pipe member 13 is sleeved on the end of the second housing 1121b; wherein, the first housing 1121a and the second housing 1121b are set at an angle; preferably, they are set at 90 degrees to be more compact in the Y-direction space.

[0062] As can be understood, the joint housing 1121 serves as the main body of the rotating structure 112. It consists of a first housing 1121a and a second housing 1121b that communicate with each other. The end of the first housing 1121a is sleeved over the channel portion 111a, ensuring a tight connection between the rotating structure 112 and the channel structure 111. The end of the second housing 1121b is sleeved by the pipe member 13, thus securing the pipe member 13 to the rotating structure 112. This allows the joint housing 1121 to withstand various torques and vibrations during vehicle operation.

[0063] The first and second housings 1121a and 1121b are arranged at an angle, preferably 90 degrees, to make the rotating structure 112 more compact in the Y-direction (i.e., the vehicle's transverse direction). This reduces interference with surrounding components when the internal space between the steering member 200 and the vehicle body 300 in the Y-direction is relatively confined, improving the rationality of the overall layout.

[0064] like Figures 9 and 10 ; In a further embodiment of the present invention, the first shell 1121a includes a first section a1 and a second section a2 connected in sequence, the first inner diameter d1 of the first section a1 matches the channel portion 111a, and the second inner diameter d2 of the second section a2 is larger than the first inner diameter d1; the rotating structure 112 also includes at least one sealing ring 1122 and at least one gear ring 1123 arranged in the second section a2; the sealing ring 1122 is sleeved on the outer periphery of the channel portion 111a, and the gear ring 1123 is connected to the inner wall of the second section a2, and is located on at least one side of the sealing ring 1122 along the axial direction of the channel portion 111a.

[0065] The first inner diameter d1 of the first section a1 matches the channel portion 111a, ensuring a tight fit. This design allows the first section a1 to be securely mounted on the channel portion 111a, preventing relative displacement or loosening during rotation that could lead to coolant leakage. The second inner diameter d2 of the second section a2 is larger than the first inner diameter d1 to provide installation space for the sealing ring 1122 and the retaining ring 1123. This difference in inner diameter allows the second section a2 to accommodate more sealing components.

[0066] The sealing ring 1122 is sleeved on the outer periphery of the channel portion 111a and mainly plays a sealing role. It can effectively prevent the cooling medium from leaking out from the gap between the channel portion 111a and the first shell 1121a during the transmission process.

[0067] Among them, the retaining ring 1123 is connected to the inner wall of the second section a2 and is located on at least one side of the sealing ring 1122 along the axial direction of the channel portion 111a. The main function of the retaining ring 1123 is to position and fix the sealing ring 1122 to prevent it from being displaced or falling off during operation. At the same time, the retaining ring 1123 can also provide a certain axial support force to enhance the overall stability of the rotating structure 112. The two-section design of the first shell 1121a in the rotating structure 112 and the arrangement of the sealing ring 1122 and the retaining ring 1123 together constitute a simple and stable sealing system. This improves the sealing performance and stability of the rotating structure 112 while taking into account the rotatable function.

[0068] In an optional solution, there are two sealing rings 1122, and there are two gear rings 1123, including a first gear ring 1123a and a second gear ring 1123b. The first gear ring 1123a is located between the two sealing rings 1122, and the second gear ring 1123b and the first gear ring 1123a are spaced apart with one of the sealing rings 1122 between them.

[0069] It is understood that there are two sealing rings 1122, each located at a different position between the channel portion 111a and the first housing 1121a, to form a double seal. This arrangement significantly reduces the risk of cooling medium leakage. Even if one sealing ring wears out or fails, the other sealing ring can still maintain the sealing effect.

[0070] The first retaining ring 1123a is located between the two sealing rings 1122. Its primary function is to secure and support the two sealing rings, preventing axial movement or misalignment. It also enhances the rigidity of this area, helping to resist external forces and maintain stable sealing performance. Similarly, the second retaining ring 1123b is spaced apart from the first retaining ring 1123a and located axially to one of the sealing rings 1122 (typically the one near the end of the second segment a2). This second retaining ring 1123b further secures the position of this sealing ring and prevents it from moving into the second segment a2.

[0071] Based on the above, in the embodiment of the present invention, the retaining ring 1123 and the channel portion 111a have a clearance fit. This radial clearance fit allows the retaining ring 1123 to have a certain degree of freedom within the radial range of the channel portion 111a, without generating excessive frictional resistance due to a tight fit. This degree of freedom enables the joint housing 1121 to rotate smoothly when subjected to axial force without being hindered by radial friction.

[0072] like Figures 10 and 11 ; The rotating structure 112 also includes a snap-fit structure 1124, and the first shell 1121a also includes a third section a3 connected to the second section a2, and the third inner diameter d3 of the third section a3 is larger than the second inner diameter d2; the snap-fit structure 1124 is arranged in the third section a3, and the outer periphery of the channel portion 111a is correspondingly provided with a flange structure 1111, and the snap-fit structure 1124 and the flange structure 1111 cooperate with each other to constrain the channel portion 111a to move axially.

[0073] Specifically, the third inner diameter d3 of the third section a3 is larger than the second inner diameter d2 of the second section a2, providing sufficient space for the mounting of the snap-fit structure 1124. The snap-fit structure 1124 cooperates with the flange structure 1111 on the outer periphery of the channel portion 111a. When engaged, the two effectively restrict axial movement of the channel portion 111a, achieving axial locking between the rotating structure 112 and the channel portion 111a.

[0074] The bogie connector 11 also includes a connecting mechanism 113, which includes a first hose 113a, a first hoop 113b, and a second hoop 113c. The first hose 113a is mounted on the end of the channel portion 111a facing away from the rotating structure 112 and is secured by the first hoop 113b. The second hoop 113c secures the pipe member 13 to the second housing 1121b. The first hose 113a is mounted on the end of the channel portion 111a facing away from the rotating structure 112. The first hose 113a has good flexibility, adapting to pipe connections of various angles and shapes while also providing a certain degree of shock absorption and cushioning. The first hoop 113b is used to secure the connection between the first hose 113a and the channel portion 111a. Tightening the first hoop 113b ensures a tight, leak-free connection between the first hose 113a and the channel portion 111a. Likewise, the second hoop 113c is used to fasten the pipe member 13 to the second housing 1121b.

[0075] Furthermore, the outer periphery of the second housing 1121b is provided with a plurality of relatively raised collars 1122. The pipe member 13 is sleeved onto the second housing 1121b and secured by the second hoop 113c. The raised collars 1122 increase the contact area between the second housing 1121b and the pipe member 13, thereby enhancing friction. This helps prevent the pipe member 13 from sliding or rotating relative to the second housing 1121b when subjected to external forces.

[0076] At least a portion of the collar 1122 is designed to be hook-shaped, so that when the pipe member 13 is mounted on the second housing 1121b, its inner wall and the hook portion of the collar 1122 will form a certain clamping effect. Even under complex operating conditions such as rotation or vibration, the pipe member 13 can be effectively prevented from falling off the second housing 1121b.

[0077] Can Figure 4For reference, another aspect of the embodiment of the present invention further provides a vehicle, including a steering member 200, including a hub motor and connected to a single wheel 400, for driving and performing steering of the wheel 400; a vehicle body 300, connected to the wheel 400 through the steering member 200; and the cooling medium transmission device 100 as described above, wherein the cooling medium transmission device 100 is arranged between the steering member 200 and the vehicle body 300. Obviously, the vehicle has all the beneficial effects brought about by the above-mentioned cooling medium transmission device 100. And the introduction of the cooling medium transmission device 100 ensures the stable operation of the vehicle power system in a high temperature environment, reducing the risk of failure due to overheating. At the same time, its stable pipeline connection can ensure the stability of the cooling medium supply, further enhancing the reliability of the vehicle. No repetition will be made here.

[0078] The various technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification as long as such combination does not conflict.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still adjust the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the embedded technical features. These adjustments or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling medium transmission device, characterized in that: Applied between a steering member (200) and a vehicle body (300), the cooling medium transmission device comprises at least one pipe assembly (10), each of the pipe assemblies (10) comprising: A bogie connecting member (11) connected to the steering member (200); a vehicle body connecting member (12), connected to the vehicle body (300); and a pipe member (13), one end of which is fixed to the vehicle body (300) via the vehicle body connecting member (12), and the other end of which is rotatably connected to the bogie connecting member (11); When the steering member (200) rotates in an XY plane based on a vehicle body coordinate system, one end of the pipe member (13) connected to the bogie connecting member (11) rotates and changes with the position of the steering member (200).

2. The cooling medium transmission device according to claim 1, characterized in that: The pipeline components (10) are multiple in number, and the multiple pipeline components (10) include a first pipeline component (10a) and a second pipeline component (10b), and the first pipeline component (10a) and the second pipeline component (10b) are connected to form a loop; The bogie connector (11) of the first pipe assembly (10a) and the bogie connector (11) of the second pipe assembly (10b) are spaced apart in the Z direction and have different lengths in the Y direction.

3. The cooling medium transmission device according to claim 2, characterized in that: The bogie connecting member (11) comprises: A channel structure (111) comprises a channel portion (111a) and a flange portion (111b), wherein the channel portion (111a) is mounted on the steering member (200) via the flange portion (111b) and partially protrudes from the flange portion (111b); A rotating structure (112) is provided, one end of which is sleeved on the channel portion (111a) of the protruding part and is rotatable relative to the channel portion (111a), and the other end of which is fixedly connected to the end of the pipe member (13).

4. The cooling medium transmission device according to claim 3, characterized in that: The rotating structure (112) comprises a joint housing (1121), and the joint housing (1121) comprises a first housing (1121a) and a second housing (1121b) that are interconnected; an end portion of the first housing (1121a) is sleeved on the channel portion (111a), and the pipe member (13) is sleeved on an end portion of the second housing (1121b); Wherein, the first shell (1121a) and the second shell (1121b) are arranged at an angle.

5. The cooling medium transmission device according to claim 4, characterized in that: The first housing (1121a) includes a first section (a1) and a second section (a2) connected in sequence, a first inner diameter d1 of the first section (a1) matches the channel portion (111a), and a second inner diameter d2 of the second section (a2) is larger than the first inner diameter d1; The rotating structure (112) further includes at least one sealing ring (1122) and at least one gear ring (1123) disposed in the second section (a2); The sealing ring (1122) is sleeved on the outer periphery of the channel portion (111a), and the retaining ring (1123) is connected to the inner wall of the second section (a2) and is located on at least one side of the sealing ring (1122) along the axial direction of the channel portion (111a).

6. The cooling medium transmission device according to claim 5, characterized in that: The retaining ring (1123) and the channel portion (111a) are clearance-fitted so that the joint housing (1121) can rotate axially along the channel portion (111a).

7. The cooling medium transmission device according to claim 5, characterized in that: The rotating structure (112) further includes a snap-fit structure (1124), and the first housing (1121a) further includes a third section (a3) connected to the second section (a2), and a third inner diameter d3 of the third section (a3) is greater than the second inner diameter d2; The snap-fit structure (1124) is arranged in the third section (a3), and a flange structure (1111) is correspondingly arranged on the outer periphery of the channel portion (111a). The snap-fit structure (1124) and the flange structure (1111) cooperate with each other to constrain the channel portion (111a) from moving axially.

8. The cooling medium transmission device according to claim 7, characterized in that: The bogie connecting member (11) further comprises a connecting mechanism (113), wherein the connecting mechanism (113) comprises a first hose (113a), a first hoop (113b), and a second hoop (113c); The first hose (113a) is sleeved on the end of the channel portion (111a) away from the rotating structure (112) and is fastened by a first hoop (113b); and a second hoop (113c) fastens the pipe member (13) to the second shell (1121b).

9. The cooling medium transmission device according to any one of claims 2 to 8, characterized in that: The cooling medium transmission device further comprises a clamp structure (14), wherein the clamp structure (14) clamps the first pipe assembly (10a) and the second pipe assembly (10b) along the Z direction.

10. A vehicle, characterized in that: include: A steering member (200), comprising a hub motor and connected to a single wheel (400), for driving and performing steering of the wheel (400); A vehicle body (300) connected to the wheels (400) via the steering member (200); and The cooling medium transmission device (100) according to any one of claims 1 to 9, wherein the cooling medium transmission device (100) is disposed between the steering member (200) and the vehicle body (300).

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