Vehicle steering assembly and vehicle

Abstract

The invention discloses a vehicle steering assembly and a vehicle, and belongs to the field of vehicle steering. The vehicle steering assembly comprises a steering shaft, a sleeve, a motor and an aligning assembly. The motor is provided with a shell and an output shaft, the output shaft is located in the shell, one end of the sleeve is connected with the shell, the steering shaft penetrates through the sleeve, and the steering shaft is connected with the output shaft; the return assembly is arranged in the shell or the sleeve, the return assembly is deformable, the return assembly is connected with the steering shaft, and the steering shaft is used for being connected with a steering wheel of a vehicle; under the condition that the steering shaft is stressed to rotate, the steering shaft drives the return assembly to deform, and under the condition that the steering shaft stops being stressed, the return assembly drives the steering shaft to reset.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of vehicle steering, and particularly relates to a vehicle steering assembly and a vehicle. BACKGROUND

[0002] With the development of science and technology, vehicles have become an indispensable means of transportation for people's daily travel. Usually, a vehicle is provided with a steering assembly, and a steering wheel of the vehicle is connected with the steering assembly. A steering shaft, a sleeve and a motor are arranged in the steering assembly, the steering shaft is connected with the steering wheel, the steering shaft is arranged in the sleeve, and the steering shaft is connected with the motor. In the process of driving the vehicle by a user, after the user turns the steering wheel, the motor can drive the steering shaft to rotate, so that the steering wheel is returned to the original position. However, in the related technology, once the motor fails or the motor malfunctions, the steering wheel is not easy to return to the original position, which increases the difficulty of the user in controlling the driving direction of the vehicle, and may cause the vehicle to lose control. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a vehicle steering assembly and a vehicle, which at least solve the problem that once the motor fails or the motor malfunctions, the steering wheel is not easy to return to the original position, which increases the difficulty of the user in controlling the driving direction of the vehicle, and may cause the vehicle to lose control.

[0004] In a first aspect, the embodiments of the present application provide a vehicle steering assembly, which comprises a steering shaft, a sleeve, a motor and a return assembly.

[0005] The motor has a shell and an output shaft, the output shaft is located in the shell, one end of the sleeve is connected with the shell, the steering shaft is arranged in the sleeve, and the steering shaft is connected with the output shaft.

[0006] The return assembly is arranged in the shell or the sleeve, the return assembly is deformable, the return assembly is connected with the steering shaft, and the steering shaft is used to be connected with a steering wheel of a vehicle.

[0007] In the case that the steering shaft is forced to rotate, the steering shaft drives the return assembly to deform, and in the case that the steering shaft stops being forced, the return assembly drives the steering shaft to reset.

[0008] Optionally, the return assembly comprises a first torsional spring, the first torsional spring is arranged in the sleeve, the first torsional spring is sleeved on the steering shaft, a first end of the first torsional spring is connected with the steering shaft, and a second end of the first torsional spring is connected with an inner wall of the sleeve.

[0009] In the case that the steering shaft is forced to rotate, the steering shaft drives the first torsional spring to deform, and in the case that the steering shaft stops being forced, the first torsional spring drives the steering shaft to reset.

[0010] Optionally, the returning assembly further comprises a first driving ring, the first driving ring is sleeved on the steering shaft, and the first driving ring is fixedly connected with the outer wall of the steering shaft, and the first driving ring is located in the sleeve;

[0011] A first fixed groove is arranged on the first driving ring, a first mounting boss is fixed on the first end of the first torsion spring, and the first mounting boss is embedded in the first fixed groove, so that the first end of the first torsion spring is connected with the steering shaft.

[0012] Optionally, a first blocking table is arranged on the first driving ring, the first blocking table is located on one side of the first fixed groove, and the first blocking table is located in the direction of the torsion of the first torsion spring, and the first mounting boss and the first blocking table abut at the connection between the first mounting boss and the first end of the first torsion spring.

[0013] Optionally, the returning assembly further comprises a first fixed ring, the first fixed ring is sleeved on the steering shaft, and the first fixed ring is fixed to the inner wall of the sleeve, and the steering shaft is rotatable relative to the first fixed ring;

[0014] A second fixed groove is arranged on the first fixed ring, a second mounting boss is fixed on the second end of the first torsion spring, and the second mounting boss is embedded in the second fixed groove, so that the second end of the first torsion spring is connected with the inner wall of the sleeve.

[0015] Optionally, a second blocking table is arranged on the first fixed ring, the second blocking table is located on one side of the second fixed groove, and the second blocking table is located in the direction of the torsion of the first torsion spring, and the second mounting boss and the second blocking table abut at the connection between the second mounting boss and the second end of the first torsion spring.

[0016] Optionally, a limiting groove is arranged on the inner wall of the sleeve, and a limiting boss is arranged on the outer wall of the first fixed ring, the limiting boss is embedded in the limiting groove, so that the first fixed ring is fixedly connected with the inner wall of the sleeve.

[0017] Optionally, the returning assembly comprises a second torsion spring and a third torsion spring;

[0018] The second torsion spring and the third torsion spring are both sleeved on the steering shaft, and the second torsion spring and the third torsion spring are both located in the sleeve;

[0019] The second torsion spring is connected to the steering shaft at one end away from the third torsion spring, and is connected to the inner wall of the sleeve at one end close to the third torsion spring. The third torsion spring is connected to the steering shaft at one end away from the second torsion spring, and is connected to the inner wall of the sleeve at one end close to the second torsion spring.

[0020] In the case of rotation of the steering shaft, the torsion direction of the second torsion spring is opposite to the torsion direction of the third torsion spring.

[0021] Optionally, the return-to-zero assembly further comprises a second driving ring and a third driving ring.

[0022] The second driving ring and the third driving ring are sleeved on the steering shaft, and are fixedly connected to the outer wall of the steering shaft. The second driving ring and the third driving ring are spaced apart along the axial direction of the steering shaft, and the second torsion spring and the third torsion spring are located between the second driving ring and the third driving ring.

[0023] The second torsion spring is connected to the second driving ring at one end away from the third torsion spring, and the third torsion spring is connected to the third driving ring at one end away from the second torsion spring.

[0024] Optionally, the return-to-zero assembly further comprises a second fixed ring.

[0025] The second fixed ring is sleeved on the steering shaft and located between the second driving ring and the third driving ring. The outer wall of the second fixed ring is connected to the inner wall of the sleeve, and the steering shaft is rotatable relative to the second fixed ring.

[0026] The second torsion spring is fixedly connected to the second fixed ring at one end close to the third torsion spring, so that the second torsion spring is connected to the inner wall of the sleeve at one end close to the third torsion spring. The third torsion spring is fixedly connected to the second fixed ring at one end close to the second torsion spring, so that the third torsion spring is connected to the inner wall of the sleeve at one end close to the second torsion spring.

[0027] Optionally, the return-to-zero assembly comprises a coil spring, which is arranged in the housing and has a first end connected to the output shaft of the motor and a second end connected to the inner wall of the housing.

[0028] Optionally, the return-to-zero assembly comprises a coil spring, which is arranged in the sleeve. The output shaft of the motor is connected to the steering shaft through an input shaft. One end of the coil spring is connected to the input shaft, and the second end of the coil spring is connected to the inner wall of the sleeve.

[0029] Secondly, embodiments of this application provide that the vehicle includes a steering wheel and a vehicle steering assembly as described in any one of the first aspects above;

[0030] The steering wheel is connected to the steering shaft.

[0031] In this embodiment, since one end of the sleeve is connected to the housing, the steering shaft passes through the sleeve and is connected to the output shaft, when the vehicle steering assembly is applied in a vehicle, the steering wheel can be connected to the steering shaft, so that the output shaft of the motor can drive the steering shaft to rotate, thereby driving the steering wheel to rotate and making the steering wheel return to center. Because the return-to-center component is housed in the housing or sleeve, it is deformable and connected to the steering shaft. Therefore, when a user turns the steering wheel while driving, force is applied to the steering shaft, causing it to rotate. This rotation then applies force to the return-to-center component, causing it to deform. When the user stops turning the steering wheel, the force on the steering shaft ceases, and the return-to-center component returns to its initial state. It then applies force to the steering shaft, resetting it and returning it to center. Furthermore, even if the motor fails or malfunctions, the return-to-center component in the motor's housing or sleeve will still ensure the steering shaft returns to center, guaranteeing effective steering wheel return during vehicle operation. In other words, in this embodiment of the application, by setting a return-centering component in the sleeve and connecting the return-centering component to the steering shaft, the problem of the steering shaft not being easy to reset due to motor failure can be avoided. This avoids the problem of the steering wheel not being easy to return to center due to motor failure, thereby reducing the difficulty for the user to control the vehicle's driving direction, improving the vehicle's driving performance, and the return-centering component being set in the sleeve also makes the steering component occupy less space in the vehicle, which is beneficial to improving the utilization rate of the vehicle's interior space. Attached Figure Description

[0032] Figure 1 This diagram illustrates a steering component provided in an embodiment of this application.

[0033] Figure 2 This is a cross-sectional view of a steering component provided in an embodiment of this application;

[0034] Figure 3 This is an exploded view of a steering component provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram illustrating a steering shaft provided in an embodiment of this application;

[0036] Figure 5 This diagram illustrates a first torsion spring provided in an embodiment of this application.

[0037] Figure 6 This diagram illustrates a first driving ring provided in an embodiment of this application.

[0038] Figure 7 This diagram illustrates a first fixing ring provided in an embodiment of this application.

[0039] Figure 8 This diagram illustrates a sleeve provided in an embodiment of this application.

[0040] Figure 9 This is a schematic diagram showing a first torsion spring provided in an embodiment of this application, with its two ends connected to a first driving ring and a first fixed ring, respectively;

[0041] Figure 10 This is a schematic diagram illustrating the connection between a second torsion spring and a third torsion spring according to an embodiment of this application.

[0042] Figure 11 This is a schematic diagram showing a coil spring provided in an embodiment of this application, which is disposed in the housing of a motor.

[0043] Figure label:

[0044] 10: Steering shaft; 101: Spline; 20: Sleeve; 21: Limiting groove; 201: Connector; 30: Motor; 31: Housing; 32: Output shaft; 40: Return assembly; 41: First torsion spring; 42: First drive ring; 43: First fixing ring; 411: First mounting boss; 412: Second mounting boss; 421: First fixing groove; 422: First blocking platform; 431: Second fixing groove; 432: Second blocking platform; 433: Limiting boss; 44: Second torsion spring; 45: Third torsion spring; 46: Second drive ring; 47: Third drive ring; 48: Second fixing ring; 49: Coil spring; 50: Controller; 100: Input shaft. Detailed Implementation

[0045] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] like Figures 1 to 11 As shown, the vehicle steering assembly includes: a steering shaft 10, a sleeve 20, a motor 30, and a return assembly 40.

[0048] The motor 30 has a housing 31 and an output shaft 32. The output shaft 32 is located in the housing 31. One end of the sleeve 20 is connected to the housing 31. The steering shaft 10 passes through the sleeve 20 and is connected to the output shaft 32. The return assembly 40 is disposed in the housing 31 or the sleeve 20. The return assembly 40 is deformable and is connected to the steering shaft 10. The steering shaft 10 is used to connect to the vehicle's steering wheel. When the steering shaft 10 is subjected to force and rotates, the steering shaft 10 drives the return assembly 40 to deform. When the steering shaft 10 stops being subjected to force, the return assembly 40 drives the steering shaft 10 to return to its original position.

[0049] In this embodiment, since one end of the sleeve 20 is connected to the housing 31, the steering shaft 10 passes through the sleeve 20 and is connected to the output shaft 32, when the vehicle steering assembly is applied in a vehicle, the steering wheel can be connected to the steering shaft 10, so that the output shaft 32 of the motor 30 can drive the steering shaft 10 to rotate, thereby driving the steering wheel to rotate and making the steering wheel return to center. Since the return-centering assembly 40 is disposed in the housing 31 or the sleeve 20, the return-centering assembly 40 is deformable and connected to the steering shaft 10. Therefore, when the user turns the steering wheel while driving the vehicle, force can be applied to the steering shaft 10, causing the steering shaft 10 to rotate. When the steering shaft 10 rotates, it can apply force to the return-centering assembly 40, causing the return-centering assembly 40 to deform. When the user stops turning the steering wheel, the steering shaft 10 stops receiving force, and the return-centering assembly 40 stops receiving force, allowing it to return to its initial state. The return-centering assembly 40 then applies force to the steering shaft 10, causing the steering shaft 10 to reset and return to center. Furthermore, even if the motor 30 fails or malfunctions, the return-centering assembly 40 in the housing 31 or the sleeve 20 of the motor 30 will still cause the steering shaft 10 to return to center, ensuring that the steering wheel can be effectively returned to center while the vehicle is in motion. In other words, in this embodiment of the application, by setting a return-centering component 40 in the sleeve 20 and connecting the return-centering component 40 to the steering shaft 10, the problem of the steering shaft 10 being difficult to reset due to the failure of the motor 30 can be avoided. This avoids the problem of the steering wheel being difficult to return to center due to the failure of the motor 30, thereby reducing the difficulty for the user to control the vehicle's driving direction and improving the vehicle's driving performance. Furthermore, the return-centering component 40 being set in the sleeve 20 also makes the steering component occupy less space in the vehicle, which is beneficial to improving the utilization rate of the vehicle's interior space.

[0050] In addition, in this embodiment of the application, by providing a return component 40 in the sleeve 20 or the housing 31 of the motor 30, the steering shaft 10 is reset mechanically, that is, the steering shaft 10 is returned to center mechanically, which can effectively avoid the problem that the steering shaft 10 is difficult to return to center when the motor 30 fails or malfunctions.

[0051] In addition, in this embodiment of the application, the steering component may also include a controller 50, which is electrically connected to the motor 30. The controller 50 controls the motor 30 so that the motor 30 drives the steering shaft 10 back to center.

[0052] In addition, in this embodiment of the application, a connector 201 may be provided on the outer wall of the sleeve 20, and the sleeve 20 may be connected to the crossbeam of the vehicle through the connector 201.

[0053] Additionally, in some embodiments, such as Figure 2As shown, the return assembly 40 may include a first torsion spring 41, which is disposed in the sleeve 20 and sleeved on the steering shaft 10. The first end of the first torsion spring 41 is connected to the steering shaft 10, and the second end of the first torsion spring 41 is connected to the inner wall of the sleeve 20. When the steering shaft 10 is subjected to force and rotates, the steering shaft 10 drives the first torsion spring 41 to deform. When the steering shaft 10 stops being subjected to force, the first torsion spring 41 drives the steering shaft 10 to return to its original position.

[0054] Since the first torsion spring 41 is disposed in the sleeve 20 and sleeved on the steering shaft 10, with its first end connected to the steering shaft 10 and its second end connected to the inner wall of the sleeve 20, once the vehicle steering assembly is applied to the vehicle, the steering wheel is connected to the steering shaft 10. When the user turns the steering wheel, the steering wheel can apply force to the steering shaft 10, causing the steering shaft 10 to rotate. This force causes the first torsion spring 41 to deform. The second end of the first torsion spring 41 is fixed to the inner wall of the sleeve 20, ensuring that the first torsion spring 41 deforms after being subjected to force. After deformation, the first torsion spring 41 stores elastic energy. This stored elastic energy is then used to rotate the steering shaft 10 once the force on the steering shaft 10 ceases (i.e., the user stops turning the steering wheel), thus returning the steering shaft 10 to its original position and straightening the steering wheel. That is, by setting the first torsion spring 41, the steering shaft 10 can be easily reset, which in turn makes it easier for the steering wheel to be reset.

[0055] It should be noted that when the first torsion spring 41 is under force, the diameter of the first torsion spring 41 decreases, which can make there a gap between the first torsion spring 41 and the outer wall of the steering shaft 10, thereby avoiding the steering shaft 10 from affecting the deformation of the first torsion spring 41 and ensuring that the first torsion spring 41 can deform with the rotation of the steering shaft 10.

[0056] Additionally, in some embodiments, such as Figure 2 and 3 As shown, the return assembly 40 may further include a first drive ring 42, which is sleeved on the steering shaft 10 and fixedly connected to the outer wall of the steering shaft 10. The first drive ring 42 is located in the sleeve 20. A first fixing groove 421 is provided on the first drive ring 42. A first mounting boss 411 is fixed to the first end of the first torsion spring 41. The first mounting boss 411 is embedded in the first fixing groove 421 so that the first end of the first torsion spring 41 is connected to the steering shaft 10.

[0057] Since the first drive ring 42 is sleeved on the steering shaft 10 and the first drive ring 42 is fixedly connected to the outer wall of the steering shaft 10, after the vehicle steering assembly is applied to the vehicle, the steering wheel is connected to the steering shaft 10. When the user turns the steering wheel, the steering shaft 10 will rotate with the rotation of the steering wheel, thereby driving the first drive ring 42 to rotate. Because the first drive ring 42 is provided with a first fixing groove 421, and the first end of the first torsion spring 41 is fixed with a first mounting boss 411, which is embedded in the first fixing groove 421, once the first drive ring 42 rotates, it can apply force to the first mounting boss 411, which in turn applies force to the first torsion spring 41, causing the torsion spring 41 to deform. When the user stops turning the steering wheel, that is, when the steering shaft 10 stops being subjected to force, the first torsion spring 41 will drive the first drive ring 42 to rotate through the first mounting boss 411, causing the first drive ring 42 to drive the steering shaft 10 to rotate, ensuring that the steering shaft 10 is reset, that is, ensuring that the steering shaft 10 returns to center. In other words, by providing the first drive ring 42, and the first fixing groove 421 on the first drive ring 42, and the first mounting boss 411 on the first end of the first torsion spring 41 being embedded in the first fixing groove 421, it is easy to connect the first end of the first torsion spring 41 to the steering shaft 10.

[0058] It should be noted that the first drive ring 42 can be fixedly connected to the outer wall of the steering shaft 10 in one of the following ways: the first drive ring 42 can be welded to the outer wall of the steering shaft 10, thereby fixing the first drive ring 42 to the outer wall of the steering shaft 10. Of course, the first drive ring 42 can also be fixedly connected to the outer wall of the steering shaft 10 in other ways, for example, the first drive ring 42 can be fixed to the outer wall of the steering shaft 10 by bolts. This embodiment of the present application does not limit this aspect.

[0059] In addition, in this embodiment, the first mounting boss 411 and the first fixing groove 421 can be interference-fitted. Of course, the first mounting boss 411 can also be installed in the first fixing groove 421 by welding. This embodiment does not limit the scope of this application.

[0060] Additionally, in some embodiments, such as Figure 6 As shown, a first blocking platform 422 is provided on the first drive ring 42. The first blocking platform 422 is located on one side of the first fixing groove 421 and is located in the direction of the first torsion spring 41 being twisted. The connection between the first mounting boss 411 and the first end of the first torsion spring 41 and the first blocking platform 422 abut against each other.

[0061] Because the connection between the first mounting boss 411 and the first end of the first torsion spring 41, and the first blocking platform 422, abut against each other, when the steering shaft 10 is under force, the steering shaft 10 drives the first drive ring 42 to rotate. Thus, the first drive ring 42 applies force to the first mounting boss 411 through the first fixing groove 421, while the first blocking platform 422 applies force to the connection between the first mounting boss 411 and the first end of the first torsion spring 41. This increases the force-bearing area of ​​the first torsion spring 41, which is beneficial for its deformation. Furthermore, the presence of the first blocking platform 422 prevents the first mounting boss 411 from easily detaching from the first fixing groove 421 when under force. In other words, by setting the first blocking platform 422, not only is the deformation of the first torsion spring 41 facilitated, but the first mounting boss 411 is also prevented from easily detaching from the first fixing groove 421.

[0062] Additionally, in some embodiments, such as Figure 2 and Figure 3 As shown, the return assembly 40 may further include a first fixing ring 43, which is sleeved on the steering shaft 10 and fixed to the inner wall of the sleeve 20. The steering shaft 10 is rotatable relative to the first fixing ring 43. A second fixing groove 431 is provided on the first fixing ring 43. A second mounting boss 412 is fixed to the second end of the first torsion spring 41. The second mounting boss 412 is embedded in the second fixing groove 431 so that the second end of the first torsion spring 41 is connected to the inner wall of the sleeve 20.

[0063] Since the first fixing ring 43 is sleeved on the steering shaft 10 and fixed to the inner wall of the sleeve 20, the steering shaft 10 can rotate relative to the first fixing ring 43. Therefore, during the rotation of the steering shaft 10, the first fixing ring 43 has minimal impact on the steering shaft 10, ensuring smooth rotation of the steering shaft 10. Because the first fixing ring 43 is provided with a second fixing groove 431, and the second end of the first torsion spring 41 is fixed with a second mounting boss 412, which is embedded in the second fixing groove 431, when the steering shaft 10 is subjected to force and rotates, the steering shaft 10 causes the first torsion spring 41 to deform. However, the second mounting boss 412 at the second end of the first torsion spring 41 is embedded in the second fixing groove 431, ensuring that the second mounting boss 412 remains stationary. This ensures that the second end of the first torsion spring 41 is fixed, thus facilitating deformation of the first torsion spring 41 when the first end of the first torsion spring 41 is subjected to force. That is, by setting a second fixing groove 431 on the first fixing ring 43, the second mounting boss 412 of the second end of the first torsion spring 41 is embedded in the second fixing groove 431. This not only facilitates the connection between the second end of the first torsion spring 41 and the inner wall of the sleeve 20, but also ensures that the first torsion spring 41 is easy to deform.

[0064] In addition, in this embodiment, the second mounting boss 412 and the second fixing groove 431 can be interference-fitted. Of course, the second mounting boss 412 can also be installed in the second fixing groove 431 by welding. This embodiment does not limit the scope of this application.

[0065] Additionally, in some embodiments, such as Figure 7 As shown, a second blocking platform 432 is provided on the first fixing ring 43. The second blocking platform 432 is located on one side of the second fixing groove 431 and is located in the direction of the first torsion spring 41 being twisted. The connection between the second mounting boss 412 and the second end of the first torsion spring 41 and the second blocking platform 432 abut against each other.

[0066] Because the connection between the second mounting boss 412 and the second end of the first torsion spring 41, and the second blocking platform 432, are in contact, the second end of the first torsion spring 41 will also be subjected to force when it deforms with the rotation of the steering shaft 10. The presence of the second blocking platform 432 increases the force-bearing area of ​​the second end of the first torsion spring 41, which is beneficial to the deformation of the first torsion spring 41. Furthermore, the presence of the second blocking platform 432 can also prevent the second mounting boss 412 from easily detaching from the second fixing groove 431 when subjected to force. In other words, by setting the second blocking platform 432, not only can the deformation of the first torsion spring 41 be facilitated, but the second mounting boss 412 can also be prevented from easily detaching from the first fixing groove 421.

[0067] Additionally, in some embodiments, such as Figure 8 As shown, a limiting groove 21 is provided on the inner wall of the sleeve 20, and a limiting boss 433 is provided on the outer wall of the first fixing ring 43. The limiting boss 433 is embedded in the limiting groove 21 to fix the first fixing ring 43 to the inner wall of the sleeve 20. This arrangement ensures a firm connection between the first fixing ring 43 and the inner wall of the sleeve 20, preventing the first fixing ring 43 from rotating, and also facilitates a relatively convenient connection between the first fixing ring 43 and the inner wall of the sleeve 20.

[0068] It should be noted that the number of limiting grooves 21 can be set according to actual needs. For example, the number of limiting grooves 21 can be one, or for another example, the number of limiting grooves 21 can be two. The specific number of limiting grooves 21 is not limited in this embodiment.

[0069] Of course, the first fixing ring 43 can be fixedly connected to the inner wall of the sleeve 20 in other ways, such as welding the first fixing ring 43 to the inner wall of the sleeve 20. This embodiment of the application does not limit this to any particular method.

[0070] In addition, in this embodiment, the first torsion spring 41 includes a plurality of helical spring wires with gaps between adjacent helical spring wires, thereby ensuring that the first torsion spring 41 can deform. Furthermore, the gap between the first torsion spring 41 and the inner wall of the sleeve 20 prevents the inner wall of the sleeve 20 from affecting the deformation of the first torsion spring 41.

[0071] Additionally, in some embodiments, such as Figure 10 As shown, the return assembly 40 may include a second torsion spring 44 and a third torsion spring 45; both the second torsion spring 44 and the third torsion spring 45 are sleeved on the steering shaft 10 and are located in the sleeve 20; the end of the second torsion spring 44 away from the third torsion spring 45 is connected to the steering shaft 10, the end of the second torsion spring 44 near the third torsion spring 45 is connected to the inner wall of the sleeve 20, the end of the third torsion spring 45 away from the second torsion spring 44 is connected to the steering shaft 10, and the end of the third torsion spring 45 near the second torsion spring 44 is connected to the inner wall of the sleeve 20; wherein, when the steering shaft 10 rotates, the torsion direction of the second torsion spring 44 is opposite to the torsion direction of the third torsion spring 45.

[0072] Because the end of the second torsion spring 44 furthest from the third torsion spring 45 is connected to the steering shaft 10, and the end of the second torsion spring 44 closest to the third torsion spring 45 is connected to the inner wall of the sleeve 20, when the steering shaft 10 is subjected to force and rotates, the steering shaft 10 can apply force to the second torsion spring 44, causing the second torsion spring 44 to deform. Similarly, because the end of the third torsion spring 45 furthest from the second torsion spring 44 is connected to the steering shaft 10, and the end of the third torsion spring 45 closest to the second torsion spring 44 is connected to the inner wall of the sleeve 20, when the steering shaft 10 is subjected to force and rotates, the steering shaft 10 can apply force to the third torsion spring 45, causing the third torsion spring 45 to deform. Specifically, once the steering shaft 10 is subjected to force and rotates, i.e., when the user turns the steering wheel, causing the steering shaft 10 to rotate, the steering shaft 10 can drive the second torsion spring 44 and the third torsion spring 45 to deform. When the steering shaft 10 stops receiving force, the second torsion spring 44 and the third torsion spring 45 can drive the steering shaft 10 to reset, i.e., drive the steering wheel back to center. Furthermore, by setting the torsion direction of the second torsion spring 44 to be opposite to that of the third torsion spring 45, the state of the second torsion spring 44 is opposite to that of the third torsion spring 45 when the second torsion spring 44 and the third torsion spring 45 deform as the steering shaft 10 rotates. For example, when the steering shaft 10 is subjected to force and rotates, the second torsion spring 44 contracts, that is, the diameter of the second torsion spring 44 decreases, and the third torsion spring 45 expands, that is, the diameter of the third torsion spring 45 increases. This makes the deformation of the second torsion spring 44 opposite to that of the third torsion spring 45, thereby eliminating the torque asymmetry problem caused by the forward and reverse rotation of the torsion springs and improving the torque symmetry of the return assembly 40.

[0073] Additionally, in some embodiments, such as Figure 10As shown, the return-to-center assembly 40 may further include a second drive ring 46 and a third drive ring 47; both the second drive ring 46 and the third drive ring 47 are sleeved on the steering shaft 10, and both are fixedly connected to the outer wall of the steering shaft 10. The second drive ring 46 and the third drive ring 47 are spaced apart along the axial direction of the steering shaft 10. The second torsion spring 44 and the third torsion spring 45 are located between the second drive ring 46 and the third drive ring 47; the end of the second torsion spring 44 away from the third torsion spring 45 is connected to the second drive ring 46, and the end of the third torsion spring 45 away from the second torsion spring 44 is connected to the third drive ring 47. With this arrangement, the steering shaft 10 can easily drive the second torsion spring 44 and the third torsion spring 45 to deform, that is, when the steering shaft 10 rotates, the steering shaft 10 can drive the second torsion spring 44 and the third torsion spring 45 to deform through the second drive ring 46 and the third drive ring 47.

[0074] It should be noted that the specific structure of the second drive ring 46 can be the same as that of the first drive ring 42, and will not be described again here. The method by which the second drive ring 46 is fixedly connected to the outer wall of the steering shaft 10 can refer to the method by which the first drive ring 42 is fixedly connected to the outer wall of the steering shaft 10, and will not be described again here. Similarly, the specific structure of the third drive ring 47 can be the same as that of the first drive ring 42, and will not be described again here. The method by which the third drive ring 47 is fixedly connected to the outer wall of the steering shaft 10 can refer to the method by which the first drive ring 42 is fixedly connected to the outer wall of the steering shaft 10, and will not be described again here.

[0075] Furthermore, the connection method between the second torsion spring 44 and the second drive ring 46 can be referenced to the connection method between the first torsion spring 41 and the first drive ring 42, and will not be described again here. The connection method between the third torsion spring 45 and the third drive ring 47 can be referenced to the connection method between the first torsion spring 41 and the first drive ring 42, and will not be described again here.

[0076] Additionally, in some embodiments, such as Figure 10As shown, the return assembly 40 may further include a second retaining ring 48; the second retaining ring 48 is sleeved on the steering shaft 10 and is located between the second drive ring 46 and the third drive ring 47. The outer wall of the second retaining ring 48 is connected to the inner wall of the sleeve 20, and the steering shaft 10 is rotatable relative to the second retaining ring 48; the end of the second torsion spring 44 near the third torsion spring 45 is fixedly connected to the second retaining ring 48, so that the end of the second torsion spring 44 near the third torsion spring 45 is connected to the inner wall of the sleeve 20, and the end of the third torsion spring 45 near the second torsion spring 44 is fixedly connected to the second retaining ring 48, so that the end of the third torsion spring 45 near the second torsion spring 44 is connected to the inner wall of the sleeve 20. With this arrangement, the rotation of the steering shaft 10 can be ensured, avoiding the problem of the second retaining ring 48 affecting the rotation of the steering shaft 10, and facilitating the connection between the second torsion spring 44 and the inner wall of the sleeve 20, as well as the connection between the third torsion spring 45 and the inner wall of the sleeve 20.

[0077] It should be noted that the way the second fixing ring 48 is fixedly connected to the inner wall of the sleeve 20 can be referred to the way the first fixing ring 43 is fixedly connected to the inner wall of the sleeve 20, and will not be repeated here.

[0078] In addition, in the embodiments of this application, the return torque of the first torsion spring 41, the second torsion spring 44, and the third torsion spring 45 can be easily adjusted by adjusting the strength of the torsion spring material, the shape and size of the helical cross section, the number of turns, and the mean diameter.

[0079] Additionally, in some embodiments, such as Figure 11 As shown, the return assembly 40 may include a coil spring 49, which is disposed in the housing 31. The first end of the coil spring 49 is connected to the output shaft 32 of the motor 30, and the second end of the coil spring 49 is connected to the inner wall of the housing 31.

[0080] With this configuration, after the vehicle steering component is applied to the vehicle, once the user turns the steering wheel, the steering shaft 10 rotates, and the steering shaft 10 drives the output shaft 32 of the motor 30 to rotate, causing the coil spring 49 to deform under force. When the user stops turning the steering wheel, the coil spring 49 returns to its initial state, and the coil spring 49 and the motor 30 drive the steering shaft 10 to reset, thus returning the steering shaft 10 to center. If the motor 30 fails or malfunctions, the coil spring 49 can still drive the steering shaft 10 to center by its own deformation. In other words, by setting the coil spring 49, the problem of the steering shaft 10 not being able to reset due to the failure of the motor 30 can be avoided, thus preventing the steering wheel from not being able to return to center due to the failure of the motor 30. This reduces the difficulty for the user to control the vehicle's driving direction and improves the vehicle's driving performance.

[0081] In some embodiments, the return assembly 40 may include a coil spring 49 disposed in the sleeve 20. The output shaft 32 of the motor 30 is connected to the steering shaft 10 via the input shaft 100. One end of the coil spring 49 is connected to the input shaft 100, and the second end of the coil spring 49 is connected to the inner wall of the sleeve 20.

[0082] With this configuration, after the vehicle steering component is applied to the vehicle, once the user turns the steering wheel, the steering shaft 10 rotates, and the steering shaft 10 applies force to the coil spring 49, causing the coil spring 49 to deform. When the user stops turning the steering wheel, the coil spring 49 returns to its initial state, and the coil spring 49 drives the steering shaft 10 to reset, thus returning the steering shaft 10 to center. Even if the motor 30 fails or malfunctions, the coil spring 49 can still drive the steering shaft 10 to center due to its own deformation. In other words, by setting up the coil spring 49, the problem of the steering shaft 10 being difficult to reset due to motor 30 failure can be avoided, thus preventing the steering wheel from being difficult to return to center due to motor 30 failure. This reduces the difficulty for the user to control the vehicle's direction and improves the vehicle's ride comfort.

[0083] This application provides a vehicle that includes a steering wheel and a vehicle steering assembly as described in any of the above embodiments; the steering wheel is connected to a steering shaft 10.

[0084] It should be noted that, in the embodiments of this application, the types of vehicles include, but are not limited to, fuel-powered vehicles, electric vehicles, and hybrid vehicles.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a 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 may be combined in any suitable manner in one or more embodiments or examples.

[0086] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle steering assembly, characterized in that, The vehicle steering assembly includes: a steering shaft, a sleeve, a motor, and a return-to-center assembly; The motor has a housing and an output shaft, the output shaft is located in the housing, one end of the sleeve is connected to the housing, the steering shaft passes through the sleeve and is connected to the output shaft; The return-centering assembly is disposed in the housing or the sleeve, the return-centering assembly is deformable, and the return-centering assembly is connected to the steering shaft, the steering shaft being used to connect to the vehicle's steering wheel; When the steering shaft is subjected to force and rotates, the steering shaft causes the return-to-center assembly to deform. When the steering shaft stops being subjected to force, the return-to-center assembly causes the steering shaft to return to its original position.

2. The vehicle steering assembly according to claim 1, characterized in that, The return assembly includes a first torsion spring, which is disposed in the sleeve and sleeved on the steering shaft. The first end of the first torsion spring is connected to the steering shaft, and the second end of the first torsion spring is connected to the inner wall of the sleeve. When the steering shaft is subjected to force and rotates, the steering shaft causes the first torsion spring to deform. When the steering shaft stops being subjected to force, the first torsion spring causes the steering shaft to return to its original position.

3. The vehicle steering assembly according to claim 2, characterized in that, The return-to-center assembly further includes a first drive ring, which is sleeved on the steering shaft and fixedly connected to the outer wall of the steering shaft. The first drive ring is located in the sleeve. The first drive ring is provided with a first fixing groove, and the first end of the first torsion spring is fixed with a first mounting boss. The first mounting boss is embedded in the first fixing groove so that the first end of the first torsion spring is connected to the steering shaft.

4. The vehicle steering assembly according to claim 3, characterized in that, The first drive ring is provided with a first blocking platform, which is located on one side of the first fixing groove and in the direction of the first torsion spring being twisted. The connection between the first mounting boss and the first end of the first torsion spring and the first blocking platform abut against each other.

5. The vehicle steering assembly according to claim 2, characterized in that, The return assembly further includes a first fixing ring, which is sleeved on the steering shaft and fixed to the inner wall of the sleeve. The steering shaft is rotatable relative to the first fixing ring. The first fixing ring is provided with a second fixing groove, and the second end of the first torsion spring is fixed with a second mounting boss. The second mounting boss is embedded in the second fixing groove so that the second end of the first torsion spring is connected to the inner wall of the sleeve.

6. The vehicle steering assembly according to claim 5, characterized in that, The first fixing ring is provided with a second blocking platform, which is located on one side of the second fixing groove and in the direction of the first torsion spring being twisted. The connection between the second mounting boss and the second end of the first torsion spring and the second blocking platform abut against each other.

7. The vehicle steering assembly according to claim 5, characterized in that, The inner wall of the sleeve is provided with a limiting groove, and the outer wall of the first fixing ring is provided with a limiting boss. The limiting boss is embedded in the limiting groove so that the first fixing ring is fixedly connected to the inner wall of the sleeve.

8. The vehicle steering assembly according to claim 1, characterized in that, The return-to-center assembly includes a second torsion spring and a third torsion spring; Both the second torsion spring and the third torsion spring are sleeved on the steering shaft, and both the second torsion spring and the third torsion spring are located in the sleeve; The end of the second torsion spring away from the third torsion spring is connected to the steering shaft, the end of the second torsion spring close to the third torsion spring is connected to the inner wall of the sleeve, the end of the third torsion spring away from the second torsion spring is connected to the steering shaft, and the end of the third torsion spring close to the second torsion spring is connected to the inner wall of the sleeve. When the steering shaft rotates, the torsion direction of the second torsion spring is opposite to that of the third torsion spring.

9. The vehicle steering assembly according to claim 8, characterized in that, The alignment component also includes a second drive ring and a third drive ring; The second drive ring and the third drive ring are both sleeved on the steering shaft, and the second drive ring and the third drive ring are both fixedly connected to the outer wall of the steering shaft. The second drive ring and the third drive ring are spaced apart along the axial direction of the steering shaft. The second torsion spring and the third torsion spring are both located between the second drive ring and the third drive ring. The end of the second torsion spring away from the third torsion spring is connected to the second drive ring, and the end of the third torsion spring away from the second torsion spring is connected to the third drive ring.

10. The vehicle steering assembly according to claim 9, characterized in that, The alignment assembly also includes a second retaining ring; The second fixing ring is sleeved on the steering shaft, and the second fixing ring is located between the second driving ring and the third driving ring. The outer wall of the second fixing ring is connected to the inner wall of the sleeve, and the steering shaft is rotatable relative to the second fixing ring. The end of the second torsion spring near the third torsion spring is fixedly connected to the second fixing ring, so that the end of the second torsion spring near the third torsion spring is connected to the inner wall of the sleeve. The end of the third torsion spring near the second torsion spring is fixedly connected to the second fixing ring, so that the end of the third torsion spring near the second torsion spring is connected to the inner wall of the sleeve.

11. The vehicle steering assembly according to claim 1, characterized in that, The return assembly includes a coil spring disposed in the housing, with a first end of the coil spring connected to the output shaft of the motor and a second end of the coil spring connected to the inner wall of the housing.

12. The vehicle steering assembly according to claim 1, characterized in that, The return assembly includes a coil spring disposed in the sleeve. The output shaft of the motor is connected to the steering shaft via an input shaft. One end of the coil spring is connected to the input shaft, and the second end of the coil spring is connected to the inner wall of the sleeve.

13. A vehicle, characterized in that, The vehicle includes a steering wheel and a vehicle steering assembly as described in any one of claims 1-12; The steering wheel is connected to the steering shaft.

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