A support for a drive shaft, a drive structure and a vehicle

Abstract

The application belongs to the technical field of vehicles and discloses a support for a drive shaft, a drive structure and a vehicle. The support comprises a body, the body is sleeved on the outside of the drive shaft, the inside of the body is provided with a mounting cavity and at least one heat dissipation channel, the mounting cavity is used for accommodating a bearing sleeved on the outside of the drive shaft, the at least one heat dissipation channel is located at the bottom of the drive shaft, the heat dissipation channel is provided with an inner channel opening, an outer channel opening and at least one connecting section located between the inner channel opening and the outer channel opening, the center axis of the at least one connecting section is arranged in a spaced or intersecting mode with the center axis of one of the inner channel opening and the outer channel opening, so that the heat generated by the bearing located in the mounting cavity can be directly discharged to the outside of the support through the heat dissipation channel, the heat dissipation efficiency of the bearing is improved, the service life of the bearing is ensured, the path of the rainwater or dust entering the mounting cavity is more tortuous, the situation that the dust and rainwater enter the mounting cavity is avoided, and the sealing performance of the support is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of vehicles, specifically relating to a drive shaft bracket, drive structure, and vehicle. Background Technology

[0002] An automobile is a non-rail-mounted vehicle with multiple wheels that is driven by a power unit. It is mainly used to carry people and goods and is one of the most important means of transportation in modern society. According to the energy source, it can be divided into traditional fuel vehicles that use traditional fuels as the power source and new energy vehicles that use clean energy as the power source. However, regardless of whether it is a traditional fuel vehicle or a new energy vehicle, it usually transmits power through a drive shaft.

[0003] To increase the stability of the drive shaft, a bracket is typically installed on the vehicle to support it, thereby increasing stability. For traditional gasoline-powered vehicles, the bracket is usually mounted outside the engine block or on the reducer; while for new energy vehicles, the bracket is typically mounted on the oil pan of the electric motor or other locations. Furthermore, to reduce the friction between the drive shaft and the bracket, a bearing is usually installed inside the bracket, fitted onto the outside of the drive shaft, to further reduce friction between the two.

[0004] However, bearings generate heat during rotation, and this heat cannot be dissipated to the outside of the bracket in a timely manner, resulting in high operating temperatures and affecting bearing lifespan. To improve heat dissipation efficiency and extend bearing life, one approach is to install ventilation holes on the bracket to allow heat to escape directly. While this improves heat dissipation, the complex operating environment of vehicles allows rainwater or dust to enter the bracket through these holes. Rainwater or dust may also enter the bracket from other locations, potentially contaminating the bearing's lubricating grease and further impacting its lifespan. Therefore, improving bearing heat dissipation efficiency while ensuring bracket sealing and internal cleanliness is a pressing technical challenge. Utility Model Content

[0005] This application provides a drive shaft bracket that improves the heat dissipation efficiency of the bearing while ensuring the bracket's sealing performance and internal cleanliness, thereby ensuring the bearing's service life.

[0006] The technical solution adopted in this application is as follows:

[0007] A drive shaft bracket includes a body sleeved on the outside of a drive shaft. The interior of the body has a mounting cavity and at least one heat dissipation channel. The mounting cavity is used to accommodate a bearing sleeved on the outside of the drive shaft. At least one heat dissipation channel is located at the bottom of the drive shaft, and the heat dissipation channel has an inner channel opening located at the end of the mounting cavity, an outer channel opening located on the outer contour of the body, and at least one connecting segment located between the inner channel opening and the outer channel opening. The central axis of the at least one connecting segment is spaced apart from or intersects with the central axis of one of the inner channel opening and the outer channel opening.

[0008] By adopting the above technical solution, since the main body has a heat dissipation channel, and the heat dissipation channel has an inner channel opening at the end of the mounting cavity and an outer channel opening on the outer contour of the main body, the heat generated by the bearing installed in the mounting cavity can be directly discharged to the outside of the bracket through the heat dissipation channel, thereby improving the heat dissipation efficiency of the bearing. This allows the bearing installed in the mounting cavity to work within a better temperature range, thus ensuring the service life of the bearing.

[0009] Because the central axis of at least one connecting section is spaced apart from or intersects with the central axis of either the inner or outer channel opening, the movement path of dust or rainwater entering the mounting cavity through the heat dissipation channel becomes more tortuous, increasing the difficulty for rainwater or dust to enter the mounting cavity, thereby ensuring the airtightness of the internal space of the bracket.

[0010] Meanwhile, since at least one heat dissipation channel is located at the bottom of the drive shaft, rainwater or dust in the mounting cavity can be discharged to the outside of the bracket through the heat dissipation channel at the bottom of the drive shaft. This increases the cleanliness of the bracket and prevents rainwater or dust from entering the bearing and contaminating the grease inside the bearing. This ensures the lubrication effect of the grease inside the bearing and further ensures the service life of the bearing.

[0011] Optionally, the connecting segment is inclined in the direction away from the drive shaft from the inner channel opening to the outer channel opening.

[0012] By adopting the above technical solution, since hot air will diffuse outward, and in this application the connecting section is inclined from the direction of the inner channel opening to the outer channel opening in the direction away from the drive shaft, the inner wall of the heat dissipation channel can guide the hot air, so that the hot air can move to the outside of the bracket more quickly, thereby further improving the heat dissipation efficiency of the bearing, thereby further ensuring that the bearing can work in a better temperature range, and thus further extending the service life of the bearing.

[0013] Meanwhile, because the heat dissipation channel is inclined from the inner channel opening to the outer channel opening, facing away from the drive shaft, rainwater or dust in the mounting cavity can be completely discharged from the bracket through the heat dissipation channel located at the bottom of the drive shaft. This prevents rainwater or dust from accumulating in the heat dissipation channel at the bottom of the drive shaft and clogging it, thus ensuring the efficiency of heat dissipation from the bearing through the heat dissipation channel and ensuring the bearing's heat dissipation efficiency. Furthermore, the inner wall of the heat dissipation channel located at the bottom of the drive shaft can also guide rainwater or dust, allowing it to be quickly discharged from the mounting cavity. This further prevents rainwater or dust from entering the bearing and contaminating the lubricating grease, thereby further extending the bearing's service life.

[0014] Optionally, the main body includes a cylindrical body sleeved outside the drive shaft and a seat body disposed outside the cylindrical body. The seat body is used to connect the docking parts and is hollow inside. The seat body is provided with reinforcing ribs connected to the cylindrical body inside, and heat dissipation vents communicating with the interior of the seat body are provided on the periphery of the seat body.

[0015] By adopting the above technical solution, since the seat body is hollow inside and has reinforcing ribs connected to the cylinder, the weight of the support is reduced while ensuring the structural strength of the support. This facilitates the lightweight design of vehicles equipped with the support of this application, and also reduces the amount of raw materials required for the production and manufacturing of the support, thereby reducing the production and manufacturing cost of the support.

[0016] The heat generated by the bearing installed in the mounting cavity is partly discharged directly to the bracket through the heat dissipation channel, and partly transferred to the cylinder. The heat transferred to the cylinder will then be transferred to the reinforcing ribs and the base, thereby increasing the heat dissipation area of ​​the bracket. By setting heat dissipation vents that communicate with the inside of the base on its periphery, the heat transferred to the reinforcing ribs can be directly discharged through the heat dissipation vents, thereby improving the heat dissipation effect of the reinforcing ribs, further improving the heat dissipation efficiency of the bearing, and thus further extending the service life of the bearing.

[0017] Optionally, the cylinder has a receiving section and a sealing section, the mounting cavity is located inside the receiving section, the seat is connected to one end of the sealing section near the receiving section, and the outside of the receiving section is provided with heat dissipation fins connected to the seat.

[0018] By adopting the above technical solution, since the seat is connected to the end of the sealing section near the receiving section, on the one hand, the seat can avoid the receiving section to ensure the contact area between the receiving section and the air, thereby ensuring the heat dissipation efficiency of the receiving section and further ensuring the heat dissipation efficiency of the bearing. On the other hand, the connection position between the seat and the cylinder is closer to the installation position of the bearing to ensure the stability of the support of the bracket for the bearing and the drive shaft.

[0019] Because the accommodating section is equipped with heat dissipation fins connected to the base, the connection strength between the accommodating section and the base is increased, thereby increasing the stability of the accommodating section and thus further increasing the support stability of the bracket for the bearing and drive shaft. On the other hand, the heat dissipation area of ​​the accommodating section is increased, thereby further improving the heat dissipation efficiency of the accommodating section and thus further improving the heat dissipation efficiency of the bearing, thereby further ensuring the service life of the bearing.

[0020] Optionally, the seat extends in a direction away from the receiving section, the reinforcing rib is disposed between the seat and the sealing section, the end of the seat away from the receiving section has a connecting plane, and the sealing section has an annular rib protruding from the connecting plane.

[0021] By adopting the above technical solution, since the seat extends away from the direction of the receiving section and the reinforcing rib is located between the seat and the sealing section, the length of the seat and the sealing section is increased, thereby further increasing the heat dissipation area of ​​the bracket, thus further increasing the heat dissipation efficiency of the bracket, further improving the heat dissipation efficiency of the bearing, and further ensuring the service life of the bearing.

[0022] Because the end of the seat body away from the receiving section has a connecting plane, the contact area between the bracket and the mating part is increased, thereby increasing the connection stability between the bracket and the mating part, thus ensuring the support effect of the bracket on the drive shaft and ensuring the stable operation of the drive shaft.

[0023] Because the sealing section has annular ribs protruding from the connecting plane, it can, on the one hand, use the annular ribs to interlock with the mating parts to position the bracket, thus facilitating the subsequent fixing of the bracket. On the other hand, it can increase the contact area between the sealing section and the mating parts, thereby increasing the sealing between the cylinder and the mating parts. This prevents rainwater or dust from entering the cylinder through the gap between the cylinder and the mating parts and contacting the bearing, further preventing rainwater or dust from contaminating the grease inside the bearing, and thus further ensuring the service life of the bearing.

[0024] Optionally, the inner diameter of the sealing section gradually increases along the direction close to the receiving section, and the inner channel opening is located at one end of the sealing section close to the receiving section.

[0025] By adopting the above technical solution, since the inner diameter of the sealing section gradually increases along the direction close to the receiving section, and the inner channel opening is located at the end of the sealing section close to the receiving section, rainwater or dust in the sealing section can move along the inner wall of the sealing section towards the direction close to the receiving section. Finally, the rainwater or dust in the sealing section moves to the inner channel opening located at the bottom of the drive shaft and is discharged to the outside of the bracket through the heat dissipation channel located at the bottom of the drive shaft. This prevents rainwater or dust from entering the bearing and contaminating the lubricating grease, thereby further ensuring the service life of the bearing. At the same time, it avoids the accumulation of rainwater in the sealing section, which may cause the drive shaft to rust.

[0026] Optionally, the body includes a cylindrical body, and the outside of the cylindrical body is provided with ribs. The ribs extend along the axial direction of the cylindrical body, and the heat dissipation channel is formed between the ribs and the cylindrical body.

[0027] By adopting the above technical solution, a heat dissipation channel is formed between the ribs and the cylinder. Compared with the heat dissipation channel being a hole structure opened on the cylinder wall, the wall thickness of the cylinder is reduced and the production difficulty of the support is reduced, thereby reducing the production and manufacturing cost of the support. At the same time, the heat of the cylinder can be quickly transferred to the air to improve the heat dissipation efficiency of the cylinder, thereby further ensuring the service life of the bearing.

[0028] Furthermore, since the reinforcing ribs extend along the axial direction of the cylinder, the length of the heat dissipation channel is increased, which further increases the difficulty for rainwater or dust to enter the support through the heat dissipation channel, thereby further ensuring the cleanliness of the support and preventing rainwater or dust from contaminating the lubricating grease inside the bearing, thus further ensuring the service life of the bearing.

[0029] Optionally, the body further includes a base, the end of which has a connecting plane, the surrounding rib has an exhaust end flush with the connecting plane, the exhaust end is open, and the outer channel is located on the side of the surrounding rib.

[0030] By adopting the above technical solution, since the exhaust end is flush with the connecting plane and the exhaust end is open, the end face of the mating part can be used to seal the exhaust end, so that the surrounding reinforcement can be designed to avoid the exhaust end, thereby reducing the amount of raw materials required when producing the bracket, and thus further reducing the production cost of the bracket.

[0031] Because the outer channel opening is located on the side of the retaining reinforcement, the central axis of the outer channel opening is set at an angle to the central axis of the connecting section. This makes the path that rainwater or dust needs to travel through the heat dissipation channel into the support more tortuous, thereby further preventing rainwater or dust from entering the support and further ensuring the airtightness of the support.

[0032] Optionally, the base has a connecting hole and a foolproof hole located below the connecting hole. The connecting hole and the foolproof hole are located on both sides of the cylinder, and the distance between two adjacent connecting holes is greater than or less than the distance between two adjacent foolproof holes.

[0033] By adopting the above technical solution, since the distance between two adjacent connecting holes is greater than or less than the distance between two adjacent anti-fool holes, it is possible to avoid misalignment of the bracket during the bracket installation process, so as to ensure that at least one heat dissipation channel is located at the bottom of the drive shaft, thereby ensuring that rainwater or dust inside the bracket can be discharged to the outside of the bracket, so as to further ensure the service life of the bearing.

[0034] This application also discloses a drive structure to ensure the service life of the bearing and reduce the frequency of bearing replacement.

[0035] A drive structure includes a drive shaft, a bearing, a universal joint, and a bracket as described above. The drive shaft passes through the body, the bearing is sleeved on the outside of the drive shaft and located in the mounting cavity, and the end of the drive shaft is provided with a spline. The drive shaft is inserted into the universal joint through the spline.

[0036] By adopting the above technical solution, since the drive structure in this application uses the aforementioned bracket, the heat generated by the bearing can be directly discharged to the outside of the bracket, thereby improving the heat dissipation efficiency of the bearing and ensuring its service life. At the same time, it ensures the sealing of the bracket, preventing rainwater or dust from entering the bracket and contaminating the lubricating grease inside the bearing, thus further ensuring the service life of the bearing. Furthermore, rainwater or dust inside the bracket can be discharged to the outside of the bracket through the heat dissipation channel located at the bottom of the drive shaft, thereby further ensuring the service life of the bearing and reducing the frequency of bearing replacement.

[0037] Optionally, the drive shaft is provided with an annular groove located inside the spline, and a first sealing ring is provided in the annular groove, the first sealing ring contacting the inner wall of the universal joint.

[0038] By adopting the above technical solution, since the first sealing ring is located in the annular groove and contacts the universal joint, the groove wall can be used to limit the first sealing ring to increase its stability. On the other hand, the first sealing ring can be used to seal the gap between the drive shaft and the universal joint to increase the sealing performance between them. This avoids rainwater or dust from entering between the drive shaft and the universal joint and causing them to rust together, thus facilitating the maintenance of the drive structure.

[0039] Optionally, the drive shaft is provided with a positioning step, the positioning step having an inner end face and an outer end face, and a dust cover is sleeved on the outside of the drive shaft. The dust cover is located in the mounting cavity and outside the bearing. The dust cover includes a fixed section sleeved on the positioning step and a dustproof section extending radially along the drive shaft. The inner end of the fixed section abuts against the inner end face, and the outer end of the fixed section is flush with the outer end face.

[0040] By adopting the above technical solution, since the fixed section is sleeved on the positioning step, the dust cover can be fixedly connected to the drive shaft using the fixed section. Since the dust cover extends radially along the drive shaft, it can block dust and rainwater, thereby preventing rainwater or dust from entering the installation cavity, increasing the sealing of the installation cavity, and further ensuring the service life of the bearing.

[0041] Furthermore, since the inner side of the fixed section abuts against the inner end face, the inner end face can be used to position the dust cover, facilitating its installation. This also increases the contact area between the fixed section and the drive shaft, thereby improving the seal between them. Because the outer end of the fixed section is flush with the outer end face, it's possible to determine if the dust cover is properly installed by observing whether the outer end of the fixed section is flush with the outer end face, further facilitating its installation.

[0042] Optionally, the universal joint has an exposed surface opposite to the outer end face, and there is a gap between the exposed surface and the outer end face.

[0043] By adopting the above technical solution, since there is a gap between the exposed surface and the outer end face, the abnormal noise caused by the mutual friction between the exposed surface and the outer end face during the rotation of the drive shaft is avoided, thereby reducing the noise generated when the drive structure is working and improving the driving quality of the vehicle equipped with the drive structure of this application.

[0044] Optionally, a second sealing ring is provided between the bearing and the dust cover, the second sealing ring being sleeved on the outside of the drive shaft and contacting the cavity wall of the mounting cavity.

[0045] By adopting the above technical solution, the second sealing ring is sleeved on the outside of the drive shaft and contacts the cavity wall of the mounting cavity. This second sealing ring further seals the mounting cavity, increasing its sealing performance and thus improving the cleanliness of the bracket's interior, thereby ensuring the bearing's service life. Furthermore, since the second sealing ring is located between the bearing and the dust cover, the bearing and dust cover can limit its movement, increasing its stability and ensuring the sealing effect of the second sealing ring on the mounting cavity.

[0046] This application also discloses a vehicle to reduce vehicle failure rate, reduce user operating costs, and improve user experience.

[0047] A vehicle comprising the drive structure as described above.

[0048] By adopting the above technical solution, the vehicle in this application uses the aforementioned drive structure, thereby ensuring the service life of the bearings, reducing the frequency of bearing replacement, and thus reducing the vehicle's failure rate, thereby reducing the user's vehicle operating costs and improving the user's user experience.

[0049] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0050] 1. The bracket in this application includes a body sleeved on the outside of a drive shaft. The body has an internal mounting cavity and at least one heat dissipation channel. The mounting cavity is used to accommodate a bearing sleeved on the outside of the drive shaft. The at least one heat dissipation channel is located at the bottom of the drive shaft and has an inner channel opening at the end of the mounting cavity, an outer channel opening on the outer contour of the body, and at least one connecting section between the inner channel opening and the outer channel opening. The central axis of the at least one connecting section is spaced apart from or intersects with the central axis of either the inner channel opening or the outer channel opening. This allows the heat generated by the bearing installed in the mounting cavity to be directly discharged to the outside of the bracket through the heat dissipation channel, thereby improving the heat dissipation efficiency of the bearing. This allows the bearing installed in the mounting cavity to operate within a better temperature range, thus ensuring the service life of the bearing. At the same time, it ensures the sealing of the internal space of the bracket and allows rainwater or dust inside the bracket to be discharged to the outside of the bracket through the heat dissipation channel.

[0051] 2. In this application, the connecting section is inclined from the inner channel opening to the outer channel opening in a direction away from the drive shaft, thereby enabling the inner wall of the heat dissipation channel to guide hot air, so that the hot air can move to the outside of the bracket more quickly, thereby further improving the heat dissipation efficiency of the bearing, thus ensuring that the bearing can work in a better temperature range, and further extending the service life of the bearing.

[0052] 3. The main body of this application includes a cylindrical body sleeved outside the drive shaft and a seat body disposed outside the cylindrical body. The seat body is used to connect the mating parts and is hollow inside. The seat body is provided with reinforcing ribs connected to the cylindrical body. This reduces the weight of the bracket while ensuring the structural strength of the bracket, so as to facilitate the lightweight design of the vehicle equipped with the bracket of this application. At the same time, it also reduces the amount of raw materials required for the production and manufacturing of the bracket, thereby reducing the production and manufacturing cost of the bracket. The periphery of the seat body is provided with heat dissipation vents communicating with the interior of the seat body, so that the heat transferred to the reinforcing ribs can be directly discharged through the heat dissipation vents, thereby improving the heat dissipation effect of the reinforcing ribs, further improving the heat dissipation efficiency of the bearing, and thus further extending the service life of the bearing. Attached Figure Description

[0053] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0054] Figure 1 This is a first-view structural diagram of the bracket connected to the drive shaft in one embodiment of this application:

[0055] Figure 2 This is a second-view structural diagram of the bracket connected to the drive shaft in one embodiment of this application;

[0056] Figure 3 This is a third-view structural diagram of the bracket connected to the drive shaft in one embodiment of this application;

[0057] Figure 4 This is a fourth-view structural diagram of the bracket connected to the drive shaft in one embodiment of this application;

[0058] Figure 5 This is a cross-sectional view of the bracket connected to the drive shaft in one embodiment of this application;

[0059] Figure 6 This is a schematic diagram of the driving structure described in one embodiment of this application;

[0060] Figure 7 This is a cross-sectional view of the driving structure described in one embodiment of this application.

[0061] Figure label:

[0062] 1. Body; 11. Cylinder; 111. Receiving section; 112. Sealing section; 113. Mounting cavity; 114. Third snap ring; 115. Heat dissipation rib; 116. Enclosing rib; 117. Annular rib; 118. Heat dissipation channel; 1181. Inner channel opening; 1182. Outer channel opening; 1183. Connecting section; 12. Seat; 121. Reinforcing rib; 122. Heat dissipation vent; 123. Connecting plane; 124. Connecting hole; 125. Anti-fool hole; 2. Bearing; 3. Drive shaft; 31. First sealing ring; 32. Positioning step; 33. Dust cover; 34. First snap ring; 35. Second snap ring; 4. Universal joint; 5. Connecting parts. Detailed Implementation

[0063] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0064] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0065] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0066] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0068] Reference Figures 1 to 5 A drive shaft bracket is disclosed, comprising a body 1 sleeved on the outside of a drive shaft 3. The body 1 has an internal mounting cavity 113 and at least one heat dissipation channel 118. The mounting cavity 113 is used to accommodate a bearing 2 sleeved on the outside of the drive shaft 3. The at least one heat dissipation channel 118 is located at the bottom of the drive shaft 3, and the heat dissipation channel 118 has an inner channel opening 1181 located at the end of the mounting cavity 113, an outer channel opening 1182 located on the outer contour of the body 1, and at least one connecting segment 1183 located between the inner channel opening 1181 and the outer channel opening 1182. The central axis of the at least one connecting segment 1183 is spaced apart from or intersects with the central axis of one of the inner channel opening 1181 and the outer channel opening 1182.

[0069] It should be noted that the mounting cavity 113 has a central axis, and the end of the mounting cavity 113 refers to the end of the mounting cavity 113 located on its own central axis.

[0070] Since the main body 1 has a heat dissipation channel 118, and the heat dissipation channel 118 has an inner channel opening 1181 located at the end of the mounting cavity 113 and an outer channel opening 1182 located on the outer contour of the main body 1, the heat generated by the bearing 2 installed in the mounting cavity 113 can be directly discharged to the outside of the bracket through the heat dissipation channel 118, thereby improving the heat dissipation efficiency of the bearing 2. This allows the bearing 2 installed in the mounting cavity 113 to work within a better temperature range, thus ensuring the service life of the bearing 2.

[0071] Since the central axis of at least one connecting segment 1183 is spaced apart from or intersects with the central axis of either the inner channel opening 1181 or the outer channel opening 1182, the movement path of dust or rainwater entering the mounting cavity 113 through the heat dissipation channel 118 is more tortuous, thereby increasing the difficulty for rainwater or dust to enter the mounting cavity 113 and ensuring the airtightness of the internal space of the bracket.

[0072] Meanwhile, since at least one heat dissipation channel 118 is located at the bottom of the drive shaft 3, rainwater or dust in the mounting cavity 113 can also be discharged to the outside of the bracket through the heat dissipation channel 118 located at the bottom of the drive shaft 3, thereby increasing the cleanliness of the bracket and preventing rainwater or dust from entering the bearing 2 and contaminating the grease inside the bearing 2. This ensures the lubrication effect of the grease inside the bearing 2 on the bearing 2, and further achieves the effect of ensuring the service life of the bearing 2.

[0073] This application does not specify the number of heat dissipation channels 118; preferably, refer to... Figure 1 , Figure 3 and Figure 5 A heat dissipation channel 118 is provided, and the heat dissipation channel 118 is located directly below the drive shaft 3, so that the heat generated by the bearing 2 can be discharged to the outside of the bracket through the heat dissipation channel 118, and at the same time, rainwater or dust at the end of the bearing 2 can be discharged through the heat dissipation channel 118, so as to ensure the service life of the bearing 2 and reduce the manufacturing difficulty and production cost of the bracket.

[0074] The better one is to refer to Figure 1 , Figure 3 and Figure 5 The body 1 has a first end connected to the docking member 5 and a second end opposite to the first end. The heat dissipation channel 118 is located at the end of the mounting cavity 113 near the first end, so that the heat, rainwater or dust discharged through the heat dissipation channel 118 is discharged at the end near the docking member 5, thereby increasing the distance between the heat, rainwater or dust discharged through the heat dissipation channel 118 and the universal joint 4, thereby reducing the temperature rise of the universal joint 4 and preventing rainwater or dust from entering the interior of the universal joint 4.

[0075] In other embodiments, multiple heat dissipation channels 118 may be provided, with the multiple heat dissipation channels 118 spaced apart circumferentially along the body 1, and at least one heat dissipation channel 118 located directly below the drive shaft 3, so as to further improve the heat dissipation efficiency of the bearing 2.

[0076] In this embodiment, the location of the heat dissipation channel 118 is not specifically limited. Preferably, the multiple heat dissipation channels 118 are all located in the lower middle part of the body 1 to further prevent rainwater or dust from entering the interior of the body 1 through the heat dissipation channels 118. The multiple heat dissipation channels 118 are all located at the end of the mounting cavity 113 near the first end.

[0077] In other embodiments, the multiple heat dissipation channels 118 may also be arranged along the outer periphery of the entire body 1, or the multiple heat dissipation channels 118 may be located at both ends of the mounting cavity 113.

[0078] This application does not specify the number of connected segments 1183; preferably, refer to... Figure 5 The connecting section 1183 is provided with a section to reduce the difficulty of the bracket manufacturing while ensuring the bracket's sealing performance, thereby improving the bracket's production efficiency and reducing the bracket's manufacturing cost.

[0079] In other embodiments, the connecting segment 1183 may be provided in multiple segments, and adjacent connecting segments 1183 may be arranged at an angle to ensure that the heat dissipation channel 118 is a tortuous channel, thereby ensuring the sealing of the bracket; or, an arc segment may be used to transition between adjacent connecting segments to ensure that the heat dissipation channel 118 is a tortuous channel.

[0080] This application does not specifically limit the extension direction of the connected segment 1183; preferably, refer to... Figure 5 The connecting section 1183 is inclined in the direction away from the drive shaft 3, from the inner channel opening 1181 to the outer channel opening 1182.

[0081] It is understandable that the connecting segment 1183 is inclined and extended in a direction away from the drive shaft 3, away from the mounting cavity 113.

[0082] Since hot air diffuses outward, in this application, the connecting section 1183 is inclined from the inner channel opening 1181 to the outer channel opening 1182 in a direction away from the drive shaft 3. This allows the inner wall of the heat dissipation channel 118 to guide the hot air, enabling the hot air to move more quickly to the outside of the bracket, thereby further improving the heat dissipation efficiency of the bearing 2. This further ensures that the bearing 2 can work within a better temperature range, and thus further extends the service life of the bearing 2.

[0083] Meanwhile, since the heat dissipation channel 118 is inclined in the direction away from the drive shaft 3 from the inner channel opening 1181 to the outer channel opening 1182, rainwater or dust in the mounting cavity 113 can be completely discharged from the bracket through the heat dissipation channel 118 at the bottom of the drive shaft 3. This prevents rainwater or dust from accumulating in the heat dissipation channel 118 at the bottom of the drive shaft 3 and blocking it, thereby ensuring the efficiency of the heat generated by the bearing 2 in being discharged from the bracket through the heat dissipation channel 118 and ensuring the heat dissipation efficiency of the bearing 2. Furthermore, the inner wall of the heat dissipation channel 118 at the bottom of the drive shaft 3 can also guide rainwater or dust to quickly discharge from the mounting cavity 113, further preventing rainwater or dust from entering the bearing 2 and contaminating the lubricating grease, thereby further extending the service life of the bearing 2.

[0084] In other embodiments, the connecting segment 1183 may also be arranged to extend parallel to the axial direction of the drive shaft 3.

[0085] This application does not specifically limit the structure of body 1; preferably, refer to... Figure 1 and Figure 5 The main body 1 includes a cylindrical body 11 sleeved outside the drive shaft 3 and a seat 12 disposed outside the cylindrical body 11. The seat 12 is used to connect the docking part 5 and is hollow inside. The seat 12 is provided with a reinforcing rib 121 connected to the cylindrical body 11 inside. The seat 12 is provided with a heat dissipation port 122 communicating with the inside of the seat 12 on its periphery.

[0086] It should be noted that, for fuel-powered vehicles, the aforementioned docking part 5 can be the engine block, reducer housing, or other components that can be mounted on the bracket; for hybrid vehicles, the aforementioned docking part 5 can be the engine piston cylinder, reducer housing, motor oil pan, or other components that can be mounted on the bracket; for pure electric vehicles, the aforementioned docking part 5 can be the motor oil pan, or other components that can be mounted on the bracket.

[0087] Because the seat 12 is hollow inside and has reinforcing ribs 121 connected to the cylinder 11, the weight of the bracket is reduced while ensuring the structural strength of the bracket. This facilitates lightweight design of vehicles equipped with the bracket of this application and also reduces the amount of raw materials required for the production and manufacturing of the bracket, thereby reducing the production and manufacturing cost of the bracket.

[0088] The heat generated by the bearing 2 installed in the mounting cavity 113 is partially discharged directly to the bracket through the heat dissipation channel 118, and the other part is transferred to the cylinder 11. The heat transferred to the cylinder 11 is transferred to the reinforcing rib 121 and the seat 12, thereby increasing the heat dissipation area of ​​the bracket. By providing heat dissipation vents 122 that communicate with the interior of the seat 12 on the periphery of the seat 12, the heat transferred to the reinforcing rib 121 can be directly discharged through the heat dissipation vents 122, thereby improving the heat dissipation effect of the reinforcing rib 121, further improving the heat dissipation efficiency of the bearing 2, and thus further extending the service life of the bearing 2.

[0089] The better one is to refer to Figure 1 and Figure 5 Multiple reinforcing ribs 121 are spaced apart along the circumference of the cylinder 11, and multiple heat dissipation vents 122 are spaced apart along the circumference of the base 12. Each side of the base 12 has at least one heat dissipation vent 122 to further improve the heat dissipation efficiency of the cylinder 11, thereby further improving the heat dissipation efficiency of the bearing 2 and further ensuring the service life of the bearing 2.

[0090] This application does not specifically limit the formation of the heat dissipation vent 122; preferably, refer to... Figure 1and Figure 5 The side of the base 12 has a notch, which forms a heat dissipation vent 122 to reduce the difficulty of forming the heat dissipation vent 122, thereby reducing the manufacturing difficulty of the bracket. In other embodiments, the side of the base 12 has a perforated structure, which forms the heat dissipation vent 122.

[0091] Furthermore, refer to Figure 4 and Figure 5 The cylinder 11 has a receiving section 111 and a sealing section 112. The mounting cavity 113 is located inside the receiving section 111. The seat 12 is connected to one end of the sealing section 112 near the receiving section 111. The receiving section 111 is provided with heat dissipation fins 115 connected to the seat 12 on the outside.

[0092] Since the seat 12 is connected to the end of the sealing section 112 near the receiving section 111, on the one hand, the seat 12 can avoid the receiving section 111, so as to ensure the contact area between the receiving section 111 and the air, thereby ensuring the heat dissipation efficiency of the receiving section 111, and further ensuring the heat dissipation efficiency of the bearing 2. On the other hand, the connection position between the seat 12 and the cylinder 11 is closer to the installation position of the bearing 2, so as to ensure the support stability of the bracket for the bearing 2 and the drive shaft 3.

[0093] Because the accommodating section 111 is provided with heat dissipation fins 115 connected to the base 12, the connection strength between the accommodating section 111 and the base 12 is increased, thereby further increasing the stability of the accommodating section 111 and thus further increasing the support stability of the bracket for the bearing 2 and the drive shaft 3. On the other hand, the heat dissipation area of ​​the accommodating section 111 is increased, thereby further improving the heat dissipation efficiency of the accommodating section 111 and thus further improving the heat dissipation efficiency of the bearing 2, thereby further ensuring the service life of the bearing 2.

[0094] Furthermore, refer to Figure 5 The seat 12 extends in the direction away from the receiving section 111. The reinforcing rib 121 is provided between the seat 12 and the sealing section 112. The end of the seat 12 away from the receiving section 111 has a connecting plane 123. The sealing section 112 has an annular rib 117 protruding from the connecting plane 123.

[0095] Understandably, after the bracket is installed on the docking part 5, the connecting plane 123 abuts against the docking part 5.

[0096] Since the seat 12 extends away from the direction of the receiving section 111 and the reinforcing rib 121 is located between the seat 12 and the sealing section 112, the length of the seat 12 and the sealing section 112 is increased, thereby increasing the heat dissipation area of ​​the bracket and further increasing the heat dissipation efficiency of the bracket, thereby further improving the heat dissipation efficiency of the bearing 2, and further ensuring the service life of the bearing 2.

[0097] Since the end of the seat 12 away from the receiving section 111 has a connecting plane 123, the bracket and the docking part 5 can make surface contact, thereby increasing the contact area between the bracket and the docking part 5, increasing the connection stability between the bracket and the docking part 5, thus ensuring the support effect of the bracket on the drive shaft 3, and ensuring the stable operation of the drive shaft 3.

[0098] Because the sealing section 112 has an annular rib 117 protruding from the connecting plane 123, on the one hand, the annular rib 117 can be used to position the bracket by interlocking with the mating part 5, so as to facilitate the subsequent fixation of the bracket. On the other hand, it can increase the contact area between the sealing section 112 and the mating part 5, thereby increasing the sealing between the cylinder 11 and the mating part 5. This prevents rainwater or dust from entering the inside of the cylinder 11 through the gap between the cylinder 11 and the mating part 5 and contacting the bearing 2, thereby further preventing rainwater or dust from contaminating the grease inside the bearing 2, and thus further ensuring the service life of the bearing 2.

[0099] This application does not specifically limit the structure of the sealing section 112; preferably, refer to... Figure 5 The inner diameter of the sealing section 112 gradually increases along the direction close to the receiving section 111. The inner channel opening 1181 is located at one end of the sealing section 112 close to the receiving section 111, so that rainwater or dust in the sealing section 112 can move along the inner wall of the sealing section 112 towards the receiving section 111. Finally, the rainwater or dust in the sealing section 112 moves to the inner channel opening 1181 at the bottom of the drive shaft 3 and is discharged to the outside of the bracket through the heat dissipation channel 118 at the bottom of the drive shaft 3. This prevents rainwater or dust from entering the interior of the bearing 2 and contaminating the grease, thereby further ensuring the service life of the bearing 2. At the same time, it prevents rainwater from accumulating in the sealing section 112 and causing the drive shaft 3 to rust.

[0100] Preferably, the outer diameter of the sealing section 112 is also gradually increased along the direction close to the receiving section 111, so as to reduce the amount of raw materials required when manufacturing the bracket, thereby reducing the cost of bracket manufacturing.

[0101] In other implementation examples, the sealing section 112 may also be a structure in which the diameter remains constant along the direction close to the receiving section 111.

[0102] In other embodiments, the base 12 may also be a solid structure.

[0103] This application does not specifically limit the formation method of the heat dissipation channel 118; preferably, refer to Figure 3 and Figure 4 The main body 1 includes a cylinder 11, and a surrounding rib 116 is provided on the outside of the cylinder 11. The surrounding rib 116 extends along the axial direction of the cylinder 11, and a heat dissipation channel 118 is formed between the surrounding rib 116 and the cylinder 11.

[0104] Understandably, the cross section of the rib 116 perpendicular to the drive shaft 3 is U-shaped so that the rib 116 can form a heat dissipation channel 118 between itself and the cylinder 11.

[0105] Since a heat dissipation channel 118 is formed between the reinforcing rib 116 and the cylinder 11, compared with the heat dissipation channel 118 being a hole structure opened on the wall of the cylinder 11, the wall thickness of the cylinder 11 is reduced and the production difficulty of the support is reduced, thereby reducing the production and manufacturing cost of the support. At the same time, the heat of the cylinder 11 can be quickly transferred to the air to improve the heat dissipation efficiency of the cylinder 11, thereby further ensuring the service life of the bearing 2.

[0106] Furthermore, since the reinforcing ribs 116 extend along the axial direction of the cylinder 11, the length of the heat dissipation channel 118 is increased, which further increases the difficulty for rainwater or dust to enter the interior of the support through the heat dissipation channel 118, thereby further ensuring the cleanliness of the interior of the support and further preventing rainwater or dust from contaminating the grease inside the bearing 2, thus further ensuring the service life of the bearing 2.

[0107] Furthermore, refer to Figure 3 and Figure 5 The main body 1 also includes a base 12, the end of which has a connecting plane 123, and the surrounding rib 116 has an exhaust end that is flush with the connecting plane 123. The exhaust end is open, and the outer channel opening 1182 is located on the side of the surrounding rib 116.

[0108] Since the exhaust end is flush with the connecting plane 123 and the exhaust end is open, the end face of the mating part 5 can be used to seal the exhaust end, so that the surrounding rib 116 can be designed to avoid the exhaust end, thereby reducing the amount of raw materials required when producing the bracket, and further reducing the production cost of the bracket.

[0109] Since the outer channel opening 1182 is located on the side of the surrounding rib 116, the central axis of the outer channel opening 1182 is set at an angle to the central axis of the connecting section 1183, so that the path required for rainwater or dust to enter the bracket through the heat dissipation channel 118 is more tortuous, thereby further preventing rainwater or dust from entering the bracket and further ensuring the sealing of the bracket.

[0110] Preferably, the external channel opening 1182 is located on the side of the exhaust end to increase the path required for rainwater or dust to move into the bracket through the heat dissipation channel 118, thereby further ensuring the sealing of the bracket.

[0111] Of course, in other embodiments, the exhaust end of the retaining rib 116 can also be configured as a closed structure.

[0112] Furthermore, refer to Figure 3 and Figure 4 The base 12 has a connecting hole 124 and a foolproof hole 125 located below the connecting hole 124. The connecting hole 124 and the foolproof hole 125 are located on both sides of the cylinder 11, and the distance between two adjacent connecting holes 124 is greater than or less than the distance between two adjacent foolproof holes 125.

[0113] It is understandable that the bracket is fixedly connected to the mating part 5 by bolts. Both the connecting hole 124 and the anti-fool hole 125 can be used for bolts to fix the bracket to pass through, and the mating part 5 is provided with threaded holes for threaded connection with bolts corresponding to the connecting hole 124 and the anti-fool hole 125.

[0114] The distance between two adjacent connecting holes 124 is greater than or less than the distance between two adjacent anti-fool holes 125, thereby preventing misalignment of the bracket during installation and ensuring that at least one heat dissipation channel 118 is located at the bottom of the drive shaft 3. This ensures that rainwater or dust inside the bracket can be discharged to the outside of the bracket, further guaranteeing the service life of the bearing 2.

[0115] This application does not specify the number of connecting holes 124 and anti-fool holes 125. Preferably, refer to Figure 3 and Figure 4 Two connection holes 124 and two anti-fool holes 125 are provided to ensure the stability of the connection between the bracket and the mating part 5. In other embodiments, the connection holes 124 and the anti-fool holes 125 may also be provided in other numbers.

[0116] Of course, in other embodiments, in order to avoid misalignment during the installation of the bracket, the design of the anti-misalignment hole 125 can be omitted, and the multiple connecting holes 124 can be set to be unevenly spaced along the circumference of the base 12, or at least one connecting hole 124 can not be evenly spaced.

[0117] In other embodiments, the heat dissipation port 122 on the base 12 can be omitted so that a heat dissipation channel 118 is formed between the base 12 and the cylinder 11; or, a channel is provided on the wall of the cylinder 11 so that the channel provided on the wall forms a heat dissipation channel 118.

[0118] Reference Figure 6 and Figure 7 This application also discloses a drive structure, which includes a drive shaft 3, a bearing 2, a universal joint 4, and a bracket as described above. The drive shaft 3 passes through the body 1, the bearing 2 is sleeved on the outside of the drive shaft 3 and located in the mounting cavity 113, and the end of the drive shaft 3 is provided with a spline. The drive shaft 3 is inserted and engaged with the universal joint 4 through the spline.

[0119] Understandably, the universal joint 4 has a insertion cavity into which the drive shaft 3 extends, and the cavity wall is provided with a keyway so that the universal joint 4 can rotate synchronously with the drive shaft 3.

[0120] Because the drive structure in this application uses the aforementioned bracket, the heat generated by the bearing 2 can be directly discharged to the outside of the bracket, thereby improving the heat dissipation efficiency of the bearing 2 and ensuring the service life of the bearing 2. At the same time, it ensures the sealing of the bracket, preventing rainwater or dust from entering the bracket and contaminating the lubricating grease inside the bearing 2, thus further ensuring the service life of the bearing 2. Furthermore, rainwater or dust inside the bracket can be discharged to the outside of the bracket through the heat dissipation channel 118 located at the bottom of the drive shaft, thereby further ensuring the service life of the bearing 2 and reducing the frequency of bearing 2 replacement.

[0121] In a preferred embodiment, refer to Figure 7 The drive shaft 3 is provided with an annular groove located inside the spline, and a first sealing ring 31 is provided in the annular groove. The first sealing ring 31 contacts the inner wall of the universal joint 4.

[0122] It should be noted that the inner side of the spline refers to the side of the spline closest to bearing 2.

[0123] Since the first sealing ring 31 is located in the annular groove and contacts the universal joint 4, the groove wall of the annular groove can limit the first sealing ring 31 to increase its stability. On the other hand, the first sealing ring 31 can seal the gap between the drive shaft 3 and the universal joint 4 to increase the sealing performance between them. This prevents rainwater or dust from entering between the drive shaft 3 and the universal joint 4 and causing them to rust together, thus facilitating the maintenance of the drive structure.

[0124] In a preferred embodiment, refer to Figure 5 The drive shaft 3 is provided with a positioning step 32, which has an inner end face and an outer end face. A dust cover 33 is sleeved on the outside of the drive shaft 3. The dust cover 33 is located in the mounting cavity 113 and on the outside of the bearing 2. The dust cover 33 includes a fixed section sleeved on the positioning step 32 and a dustproof section extending radially along the drive shaft 3. The inner end of the fixed section abuts against the inner end face, and the outer end of the fixed section is flush with the outer end face.

[0125] It is understandable that the dustproof section is a sheet-like structure, the end face of the dustproof section is perpendicular to the axial direction of the drive shaft 3, and there is a gap between the outer periphery of the dustproof section and the cavity wall of the mounting cavity 113.

[0126] It should be noted that the outer side of bearing 2 refers to the side of bearing 2 facing universal joint 4.

[0127] Since the fixed section is fitted onto the positioning step 32, the dust cover 33 can be fixedly connected to the drive shaft 3 using the fixed section. Since the dust cover extends radially along the drive shaft 3, it can block dust and rainwater to prevent rainwater or dust from entering the mounting cavity 113, thereby increasing the sealing of the mounting cavity 113 and further ensuring the service life of the bearing 2.

[0128] Furthermore, since the inner side of the fixed section abuts against the inner end face, the inner end face can be used to position the dust cover 33, thereby facilitating the installation of the dust cover 33. This also increases the contact area between the fixed section and the drive shaft 3, thus improving the sealing between them. Because the outer end of the fixed section is flush with the outer end face, it is possible to determine whether the dust cover 33 is properly installed by observing whether the outer end of the fixed section is flush with the outer end face, further facilitating the installation of the dust cover 33.

[0129] Preferably, the fixing section is an annular structure extending circumferentially along the drive shaft 3, and the inner circumferential surface of the fixing section is interference-fitted with the positioning step 32 to increase the connection stability between the dust cover 33 and the drive shaft 3.

[0130] Furthermore, refer to Figure 7 The universal joint 4 has an exposed surface opposite to the outer end face, and there is a gap between the exposed surface and the outer end face. This avoids the abnormal noise caused by the exposed surface and the outer end face rubbing against each other during the rotation of the drive shaft 3, thereby reducing the noise generated when the drive structure is working and improving the driving quality of the vehicle equipped with the drive structure of this application.

[0131] The better one is to refer to Figure 7 The drive shaft 3 has a first snap-fit ​​groove on its outside, which extends circumferentially along the drive shaft 3. A first snap-fit ​​spring 34 is provided in the first snap-fit ​​groove. The universal joint 4 has a limit groove. After the drive shaft 3 is installed into the universal joint 4, at least a part of the first snap-fit ​​spring 34 is located in the limit groove. The first snap-fit ​​spring 34, the first snap-fit ​​groove, and the groove wall of the limit groove are used to stop and limit the drive shaft 3 and the universal joint 4, thereby increasing the connection stability between the drive shaft 3 and the universal joint 4.

[0132] Furthermore, a second sealing ring is provided between the bearing 2 and the dust cover 33. The second sealing ring is sleeved on the outside of the drive shaft 3 and contacts the cavity wall of the mounting cavity 113. This second sealing ring further seals the mounting cavity 113, increasing its sealing performance and thus improving the cleanliness inside the bracket, thereby ensuring the service life of the bearing 2. Since the second sealing ring is located between the bearing 2 and the dust cover 33, the bearing 2 and the dust cover 33 can limit its movement, increasing its stability and ensuring the sealing effect of the second sealing ring on the mounting cavity 113.

[0133] The better one is to refer to Figure 5 The drive shaft 3 is provided with a second snap-fit ​​groove located on the outside of the bearing 2. A second snap-fit ​​spring 35 is provided in the second snap-fit ​​groove and abuts against the inner ring of the bearing 2. The cavity wall of the mounting cavity 113 is provided with a third snap-fit ​​groove located on the outside of the bearing 2. A third snap-fit ​​spring 114 is provided in the third snap-fit ​​groove and abuts against the outer ring of the bearing 2. This achieves the effect of limiting the bearing 2 by using the second snap-fit ​​spring 35 and the third snap-fit ​​spring 114, thereby increasing the stability of the bearing 2.

[0134] This application also discloses a vehicle that includes the drive structure described above.

[0135] Because the vehicle in this application adopts the aforementioned drive structure, the service life of bearing 2 is guaranteed, the replacement frequency of bearing 2 is reduced, thereby reducing the vehicle's failure rate, reducing the user's vehicle operating costs, and improving the user's user experience.

[0136] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0137] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0138] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A bracket for a drive shaft, characterized in that, The device includes a body (1) sleeved on the outside of a drive shaft (3). The body (1) has an internal mounting cavity (113) and at least one heat dissipation channel (118). The mounting cavity (113) is used to accommodate a bearing (2) sleeved on the outside of the drive shaft (3). At least one heat dissipation channel (118) is located at the bottom of the drive shaft (3). The heat dissipation channel (118) has an inner channel opening (1181) located at the end of the mounting cavity (113), an outer channel opening (1182) located on the outer contour of the body (1), and at least one connecting segment (1183) located between the inner channel opening (1181) and the outer channel opening (1182). The central axis of the at least one connecting segment (1183) is spaced apart from or intersects the central axis of either the inner channel opening (1181) or the outer channel opening (1182).

2. The drive shaft bracket according to claim 1, characterized in that, The connecting section (1183) is inclined in the direction away from the drive shaft (3) from the inner channel opening (1181) to the outer channel opening (1182).

3. A drive shaft bracket according to any one of claims 1-2, characterized in that, The main body (1) includes a cylindrical body (11) sleeved outside the drive shaft (3) and a seat (12) disposed outside the cylindrical body (11). The seat (12) is hollow inside and used to connect the docking part (5). The seat (12) is provided with a reinforcing rib (121) connected to the cylindrical body (11) inside. The seat (12) is provided with a heat dissipation port (122) communicating with the inside of the seat (12) on its periphery.

4. A drive shaft bracket according to claim 3, characterized in that, The cylindrical body (11) has a receiving section (111) and a sealing section (112). The mounting cavity (113) is located inside the receiving section (111). The seat (12) is connected to one end of the sealing section (112) near the receiving section (111). The receiving section (111) is provided with heat dissipation fins (115) connected to the seat (12) on the outside.

5. A drive shaft bracket according to claim 4, characterized in that, The seat (12) extends in a direction away from the receiving section (111), the reinforcing rib (121) is located between the seat (12) and the sealing section (112), the end of the seat (12) away from the receiving section (111) has a connecting plane (123), and the sealing section (112) has an annular rib (117) protruding from the connecting plane (123).

6. A drive shaft bracket according to claim 4, characterized in that, The inner diameter of the sealing section (112) gradually increases in the direction close to the receiving section (111), and the inner channel opening (1181) is located at one end of the sealing section (112) close to the receiving section (111).

7. A drive shaft bracket according to any one of claims 1-2, characterized in that, The main body (1) includes a cylindrical body (11), and a surrounding rib (116) is provided on the outside of the cylindrical body (11). The surrounding rib (116) extends along the axial direction of the cylindrical body (11), and the heat dissipation channel (118) is formed between the surrounding rib (116) and the cylindrical body (11).

8. A drive shaft bracket according to claim 7, characterized in that, The main body (1) also includes a seat (12), the end of which has a connecting plane (123), the surrounding rib (116) has an exhaust end that is flush with the connecting plane (123), the exhaust end is open, and the outer channel opening (1182) is located on the side of the surrounding rib (116).

9. A drive shaft bracket according to claim 8, characterized in that, The base (12) has a connecting hole (124) and a foolproof hole (125) located below the connecting hole (124). The connecting hole (124) and the foolproof hole (125) are located on both sides of the cylinder (11), and the distance between two adjacent connecting holes (124) is greater than or less than the distance between two adjacent foolproof holes (125).

10. A driving structure, characterized in that, The device includes a drive shaft (3), a bearing (2), a universal joint (4), and a bracket as described in any one of claims 1-9. The drive shaft (3) passes through the body (1), the bearing (2) is sleeved on the outside of the drive shaft (3) and located in the mounting cavity (113), and the end of the drive shaft (3) is provided with a spline. The drive shaft (3) is inserted into the universal joint (4) through the spline.

11. A driving structure according to claim 10, characterized in that, The drive shaft (3) is provided with an annular groove located inside the spline, and a first sealing ring (31) is provided in the annular groove. The first sealing ring (31) contacts the inner wall of the universal joint (4).

12. A driving structure according to claim 10, characterized in that, The drive shaft (3) is provided with a positioning step (32), the positioning step (32) has an inner end face and an outer end face, and a dust cover (33) is sleeved on the outside of the drive shaft (3). The dust cover (33) is located in the mounting cavity (113) and on the outside of the bearing (2). The dust cover (33) includes a fixed section sleeved on the positioning step (32) and a dustproof section extending radially along the drive shaft (3). The inner end of the fixed section abuts against the inner end face, and the outer end of the fixed section is flush with the outer end face.

13. A driving structure according to claim 12, characterized in that, The universal joint (4) has an exposed surface opposite to the outer end face, and there is a gap between the exposed surface and the outer end face.

14. A driving structure according to claim 12, characterized in that, A second sealing ring is provided between the bearing (2) and the dust cover (33). The second sealing ring is sleeved on the outside of the drive shaft (3) and contacts the cavity wall of the mounting cavity (113).

15. A vehicle, characterized in that, Includes the drive structure as described in any one of claims 10-14 above.

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