Electric power steering and vehicle

Abstract

The application provides an electric steering wheel and a vehicle. The electric steering wheel comprises a steering wheel base, a motor, a steering wheel cover, an elastic member, a first conductive member, a first conductive ring and a second conductive ring which are mutually insulated, a brush, and a second conductive member and a third conductive member which are mutually insulated. Movement of the steering wheel cover in a first direction can drive the first conductive member to switch between a first state and a second state. In the first state, the first conductive member is in contact with and electrically connected to the second conductive member and the third conductive member respectively. In the second state, the first conductive member is separated from the second conductive member and the third conductive member respectively. The electric steering wheel provided by the application can simplify the circuit in the electric steering wheel and facilitate more reliable realization of the function of triggering the horn to sound.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to an electric steering wheel and a vehicle. Background Technology

[0002] In autonomous vehicles, the electric steering wheel is typically driven by a motor to rotate the steering wheel base, enabling maneuvers such as turning and changing lanes. The electric steering wheel usually integrates a horn trigger function, which uses a specific structure on the electric steering wheel to activate the vehicle's horn, alerting pedestrians or vehicles in front and behind.

[0003] However, in related technologies, electric steering wheels typically include multiple conductive wires to achieve the horn triggering function. These wires are connected to the steering wheel base via screws and other connectors. As a result, the internal structure of the electric steering wheel is quite complex. To simplify the internal structure of the electric steering wheel, the wiring harness is usually integrated into the rotor of the motor. Therefore, how to trigger the horn to sound during the rotation of the motor has become an urgent problem to be solved. Summary of the Invention

[0004] This application provides an electric steering wheel and a vehicle, which integrates the relevant structure into a motor. While realizing the function of triggering the horn to sound during the rotation of the steering wheel, it also helps to simplify the structure inside the electric steering wheel.

[0005] This application is achieved through the following technical solution:

[0006] In a first aspect, embodiments of this application provide an electric steering wheel, which includes a steering wheel base, a motor, a steering wheel cover, an elastic element, a first conductive element, a first conductive ring and a second conductive ring that are insulated from each other, a brush, and a second conductive element and a third conductive element that are insulated from each other. The motor includes a motor housing and a rotating shaft, which is connected to the steering wheel base and used to drive the steering wheel base to rotate. The steering wheel cover is disposed on the rotating shaft and is movable relative to the rotating shaft in a first direction. The elastic element is disposed between the rotating shaft and the steering wheel cover, and the first conductive element is disposed on the side of the steering wheel cover facing the rotating shaft. The first conductive ring and the second conductive ring are insulatedly disposed on the motor housing and connected in series with the horn. The brush is insulatedly disposed on the rotating shaft and includes a first conductive contact and a second conductive contact that are insulated from each other. The brush is configured such that, during rotation with the rotating shaft, the first conductive contact is electrically connected to the first conductive ring and can slide along the first conductive ring, and the second conductive contact is electrically connected to the second conductive ring and can slide along the second conductive ring. The second and third conductive elements are insulated from and connected to the rotating shaft. The second conductive element is electrically connected to the first conductive contact, and the third conductive element is electrically connected to the second conductive contact. Movement of the steering wheel cover along a first direction drives the first conductive element to switch between a first state and a second state. In the first state, the first conductive element is in contact with and electrically connected to both the second and third conductive elements. In the second state, the first conductive element is separated from both the second and third conductive elements.

[0007] In some embodiments, a first conductive ring and a second conductive ring are disposed at one end of the rotating shaft facing away from the steering wheel cover. The rotating shaft has a hollow cavity that extends through the end of the rotating shaft facing the steering wheel cover. A second conductive element passes through the hollow cavity along a first direction, and / or a third conductive element passes through the hollow cavity along the first direction.

[0008] In some embodiments, the second conductive element has a first conductive end disposed at one end of the rotating shaft facing the steering wheel cover; and / or, the second conductive element has a second conductive end disposed at one end of the rotating shaft facing the steering wheel cover.

[0009] In some embodiments, the first conductive end and the second conductive end are arranged radially opposite each other along the axis of rotation.

[0010] In some embodiments, the first conductive element includes a metal sheet, the metal sheet includes a first sub-segment, a second sub-segment, and a connecting segment, the connecting segment is connected to the steering wheel cover, the first sub-segment and the second sub-segment are disposed at both ends of the connecting segment and are respectively bent relative to the connecting segment, in a first state, the first sub-segment is electrically connected to the first conductive end, and the second sub-segment is electrically connected to the second conductive end.

[0011] In some embodiments, the first segment is arc-shaped, and the center of curvature of the first segment is located on the side of the first segment opposite to the axis of rotation; and / or, the second segment is arc-shaped, and the center of curvature of the second segment is located on the side of the second segment opposite to the axis of rotation.

[0012] In some embodiments, the inner wall of the hollow cavity is provided with a first groove extending along a first direction, and at least a portion of the second conductive element is disposed in the first groove; and / or, the inner wall of the hollow cavity is provided with a second groove extending along a first direction, and at least a portion of the third conductive element is disposed in the second groove.

[0013] In some embodiments, the shaft has a first through hole that extends through one end of the shaft toward the steering wheel cover, and a second conductive element passes through the first through hole; and / or, the shaft has a second through hole that extends through one end of the shaft toward the steering wheel cover, and a third conductive element passes through the second through hole.

[0014] In some embodiments, the steering wheel cover includes a cover body and a guide portion, the guide portion being disposed on the side of the cover body facing the pivot, and an elastic element being sleeved on the guide portion.

[0015] In some embodiments, the guide portion is columnar, and the elastic element includes a spring, which is sleeved on the guide portion.

[0016] In some embodiments, the second conductive element includes a first conductive wire and a first insulating portion, the first insulating portion covering the outer periphery of the first conductive wire; and / or, the third conductive element includes a second conductive wire and a second insulating portion, the second insulating portion covering the outer periphery of the second conductive wire.

[0017] In some embodiments, the pivot has a hollow cavity extending through one end of the pivot toward the steering wheel cover, the inner wall of the hollow cavity has a first step, and at least a portion of the elastic element is disposed in the hollow cavity and abuts against the first step and the steering wheel cover.

[0018] In some embodiments, the steering wheel cover includes a cover body and a stop portion. The stop portion is disposed on the side of the cover body facing the pivot and extends a predetermined distance in a first direction. The pivot has a hollow cavity that extends through one end of the pivot facing the steering wheel cover. The inner wall of the hollow cavity has a second step. In a first state, the stop portion abuts against the second step. In a second state, the stop portion and the second step are spaced apart.

[0019] The electric steering wheel provided in this application simplifies the wiring by placing the first and second conductive rings in the motor housing, the brushes on the shaft, and the second and third conductive components on the shaft. Furthermore, the first conductive contact of the brush is electrically connected to the first conductive ring, and the second conductive contact is electrically connected to the second conductive ring, ensuring that these connections remain constant during shaft rotation. This facilitates more reliable horn activation during steering wheel rotation. Therefore, the electric steering wheel provided in this application simplifies the wiring within the electric steering wheel while also facilitating more reliable horn activation.

[0020] Secondly, the vehicle provided in this application embodiment includes the electric steering wheel and horn provided in any of the above embodiments, and the horn is electrically connected to the first conductive element.

[0021] In some embodiments, the vehicle is agricultural machinery.

[0022] The vehicle provided in this application embodiment has the same technical effect because it adopts the electric steering wheel provided in any of the above embodiments, and will not be described again here.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the vehicle structure provided in the first embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the electric steering wheel provided in the first embodiment of this application;

[0027] Figure 3 This is a partial structural schematic diagram of the electric steering wheel provided in an embodiment of this application;

[0028] Figure 4 Another structural schematic diagram of the electric steering wheel provided in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the first conductive element in the electric steering wheel provided in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Vehicle;

[0032] 10-Electric steering wheel; 11-Steering wheel base; 12-Motor; 121-Motor housing; 122-Shaft; 122a-Hollow cavity; 122b-First groove; 122c-Second groove; 1221-First step; 1222-Second step;

[0033] 21-Steering wheel cover; 211-Cover body; 212-Guide portion; 213-Stop portion; 22-Elastic element; 221-Spring; 23-First conductive element; 231-First sub-segment; 232-Second sub-segment; 233-Connecting segment; 24-First conductive ring; 25-Second conductive ring; 26-Brush; 261-First conductive contact; 262-Second conductive contact; 27-Second conductive element; 27a-First conductive end; 28-Third conductive element; 28a-Second conductive end;

[0034] X - First direction. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0037] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication 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.

[0039] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0040] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0041] Firstly, such as Figure 1 , Figure 2 and Figure 3 As shown, the electric steering wheel 10 provided in this embodiment includes a steering wheel base 11, a motor 12, a steering wheel cover 21, an elastic element 22, a first conductive element 23, a first conductive ring 24 and a second conductive ring 25 that are insulated from each other, a brush 26, and a second conductive element 27 and a third conductive element 28 that are insulated from each other. The motor 12 includes a motor housing 121 and a rotating shaft 122. The rotating shaft 122 is connected to the steering wheel base 11 and is used to drive the steering wheel base 11 to rotate. The steering wheel cover 21 is disposed on the rotating shaft 122 and is movable relative to the rotating shaft 122 in a first direction X. The elastic element 22 is disposed between the rotating shaft 122 and the steering wheel cover 21, and the first conductive element 23 is disposed on the side of the steering wheel cover 21 facing the rotating shaft 122. The first conductive ring 24 and the second conductive ring 25 are insulated from each other in the motor housing 121 and are used to be connected in series with a horn. The brush 26 is insulated from the rotating shaft 122. The brush 26 includes a first conductive contact 261 and a second conductive contact 262 that are insulated from each other. The brush 26 is configured such that, during rotation of the rotating shaft 122, the first conductive contact 261 is electrically connected to and can slide along the first conductive ring 24, and the second conductive contact 262 is electrically connected to and can slide along the second conductive ring 25. A second conductive element 27 and a third conductive element 28 are insulated from the rotating shaft 122. The second conductive element 27 is electrically connected to the first conductive contact 261, and the third conductive element 28 is electrically connected to the second conductive contact 262. Movement of the steering wheel cover 21 along the first direction X drives the first conductive element 23 to switch between a first state and a second state. In the first state, the first conductive element 23 is in contact with and electrically connected to both the second conductive element 27 and the third conductive element 28. In the second state, the first conductive element 23 is separated from both the second conductive element 27 and the third conductive element 28.

[0042] The electric steering wheel 10 can be applied in vehicle 1 and installed on the steering wheel bracket in vehicle 1. The motor 12 includes a motor housing 121 and a rotating shaft 122. The rotating shaft 122 can be connected to the steering wheel seat 11 through a structure such as bearings. According to the real-time environmental conditions during the operation of vehicle 1, the relevant control module of vehicle 1 controls the rotation of the rotating shaft 122 of the motor 12, so as to drive the steering wheel seat 11 and the steering wheel cover 21 to rotate together through the rotating shaft 122. The angle of rotation of the steering wheel seat 11 and the steering wheel cover 21 is controlled according to the control signal of the control module, so as to realize the turning or lane changing function during the autonomous driving process of vehicle 1.

[0043] The steering wheel cover 21 is placed over the pivot 122 to provide a certain degree of protection for the brush 26, the second conductive element 27 and the third conductive element 28 installed on the pivot 122.

[0044] During the rotation of the shaft 122, the brush 26 disposed on the shaft 122, the second conductive element 27 and the third conductive element 28 connected to the shaft 122, the steering wheel cover 21 covering the shaft 122, and the elastic element 22 disposed on the steering wheel cover 21 rotate together with the shaft 122. Since the first conductive ring 24 and the second conductive ring 25 are disposed on the motor housing 121, the shaft 122 and the brush 26 will rotate relative to the first conductive ring 24 and the second conductive ring 25. During the rotation, the first conductive contact 261 of the brush 26 can slide along the first conductive ring 24 and is always electrically connected to the first conductive ring 24, and the second conductive contact 262 can slide along the second conductive ring and is always electrically connected to the first conductive ring 24.

[0045] Therefore, regardless of whether the shaft 122 rotates, the first conductive contact 261 of the brush 26 is always electrically connected to the first conductive ring 24, and the second conductive contact 262 is always electrically connected to the second conductive ring 25.

[0046] The first conductive ring 24 and the second conductive ring 25 are connected in series with the speaker, respectively. The first conductive ring 24 and the second conductive ring 25 can be electrically connected to the positive and negative terminals of the speaker, respectively. Since the first conductive ring 24 and the second conductive ring 25 are insulated from each other, the risk of internal short circuits in the first conductive ring 24 and the second conductive ring 25 is reduced.

[0047] Since the second conductive element 27 is electrically connected to the first conductive contact 261, and the third conductive element 28 is electrically connected to the second conductive contact 262, the first conductive ring 24, the first conductive contact 261, and the second conductive element 27 are connected in series to one of the positive and negative terminals of the speaker, and the second conductive ring 25, the second conductive contact 262, and the third conductive element 28 are connected in series to the other of the positive and negative terminals of the speaker.

[0048] The steering wheel cover 21 is movable relative to the pivot 122 along a first direction X to allow the first conductive element 23 to switch between a first state and a second state. The first direction X can be the axis of the pivot 122. When the horn is not required to sound, the first conductive element 23 is in the second state, separated from the second conductive element 27 and the third conductive element 28, the circuit of the horn is broken, and the horn does not sound.

[0049] When the horn needs to sound, the steering wheel cover 21 is moved along the first direction X by external force, so that the first conductive element 23 moves along the first direction X. The first conductive element 23 changes from the second state to the first state. During the movement along the first direction X, the first conductive element 23 makes contact with and is electrically connected to the second conductive element 27 and the third conductive element 28. The first conductive element 23 is electrically connected to the second conductive element 27 and the third conductive element 28. At this time, the current circuit of the horn is closed, and the horn sounds.

[0050] Because the elastic element 22 is located between the pivot 122 and the steering wheel cover 21, during the transition from the second state to the third state, the steering wheel cover 21 moves towards the pivot 122 along the first direction X, compressing the elastic element 22 and storing elastic potential energy. After the horn sounds, the external force is removed, and the steering wheel cover 21 moves away from the pivot 122 along the first direction X under the elastic potential energy of the elastic element 22. The first conductive element 23 separates from the second conductive element 27 and the third conductive element 28, and the steering wheel cover transitions from the first state to the second state, at which point the horn stops sounding.

[0051] The first conductive element 23 can be in the form of a sheet, strip, or irregular shape, and can be a one-piece structure or include multiple interconnected parts. The second conductive element 27 and the third conductive element 28 can be in the form of a strip, block, or other shapes, and can be integrally formed or composed of multiple parts interconnected.

[0052] The second conductive element 27 and the third conductive element 28 are disposed on the rotating shaft 122. Optionally, the second conductive element 27 can be disposed on the outer side, end, or inner cavity of the rotating shaft 122. Similarly, the third conductive element 28 can be disposed on the outer periphery, end, or inner cavity of the rotating shaft 122. The selection can be made according to actual needs.

[0053] Since the first conductive element 23, the second conductive element 27, and the third conductive element 28 can all rotate with the rotation of the shaft 122, the first conductive element 23 is always positioned relative to the second conductive element 27 and the third conductive element 28 along the first direction X, regardless of whether the motor 12 is running or the shaft 122 is rotating. Therefore, the horn can still be activated while the electric steering wheel 10 is rotating.

[0054] The first conductive ring 24 and the second conductive ring 25 can be ring-shaped and connected in series to the positive and negative terminals of the speaker via wire harnesses, etc. The first conductive ring 24 and the second conductive ring 25 can be circular ring-shaped so that the first conductive contact 261 and the first conductive ring 24, and the second conductive contact 262 and the second conductive ring 25 are electrically connected as the brush 26 rotates with the rotating shaft 122.

[0055] Since the brush 26 is located on the rotating shaft 122, the first conductive ring 24 and the second conductive ring 25 are insulated on the motor housing 121, and the second conductive element 27 and the third conductive element 28 are located on the rotating shaft 122, the relevant circuit structure for triggering the horn to produce sound is integrated on the motor 12. This helps to simplify the circuit structure inside the electric steering wheel 10 and reduce the space occupied by the relevant circuits.

[0056] The electric steering wheel 10 provided in this embodiment simplifies the wiring within the electric steering wheel 10 by placing the first conductive ring 24 and the second conductive ring 25 in the motor housing 121, placing the brush 26 in the rotating shaft 122, and placing the second conductive element 27 and the third conductive element 28 in the rotating shaft 122. Furthermore, the first conductive contact 261 of the brush 26 is electrically connected to the first conductive ring 24, and the second conductive contact 262 is electrically connected to the second conductive ring 25, ensuring that the first conductive contact 261 and the first conductive ring 24, and the second conductive contact 262 and the second conductive ring 25 are always electrically connected during the rotation of the rotating shaft 122. This facilitates a more reliable horn activation function during the rotation of the electric steering wheel 10. Therefore, the electric steering wheel 10 provided in this embodiment simplifies the wiring within the electric steering wheel 10 while also facilitating a more reliable horn activation function.

[0057] In some embodiments, such as Figure 3 As shown, the first conductive ring 24 and the second conductive ring 25 are disposed at one end of the rotating shaft 122 facing away from the steering wheel cover 21. The rotating shaft 122 has a hollow cavity 122a, which passes through the end of the rotating shaft 122 facing the steering wheel cover 21. The second conductive element 27 passes through the hollow cavity 122a along the first direction X, and / or the third conductive element 28 passes through the hollow cavity 122a along the first direction X.

[0058] The first conductive ring 24 and the second conductive ring 25 are disposed on the housing of the motor 12. The first conductive ring 24 and the second conductive ring 25 are disposed on the end of the rotating shaft 122 facing away from the steering wheel cover 21, so that the first conductive ring 24 and the second conductive ring 25 are supported on the housing of the motor 12.

[0059] To facilitate the electrical connection between the first conductive contact 261 and the first conductive ring 24, and between the second conductive contact 262 and the second conductive ring 25, the brush 26 can be disposed at one end of the rotating shaft 122 near the first conductive ring 24 and the second conductive ring 25. Optionally, the brush 26 can be disposed on the inner wall of the hollow cavity 122a, or the brush 26 can be disposed on the outer surface of the rotating shaft 122, as needed.

[0060] By providing a second conductive element 27 that passes through the hollow cavity 122a along the first direction X, or by providing a third conductive element 28 that passes through the hollow cavity 122a along the first direction X, it is possible to achieve electrical connection between the second conductive element 27 and the third conductive element 28 through the first conductive element 23 on the steering wheel cover 21. This also helps to reduce the risk of interference between the second conductive element 27 or the third conductive element 28 and other structures inside the motor 12.

[0061] Therefore, by placing the first conductive ring 24 and the second conductive ring 25 on the side of the rotating shaft 122 facing away from the steering wheel cover 21, the risk of interference between the first conductive ring 24 and the second conductive ring 25 and other structures is reduced. Furthermore, by inserting the second conductive element 27 and / or the third conductive element 28 through the hollow cavity 122a, the risk of interference between the second conductive element 27 and / or the third conductive element 28 and other structures inside the motor 12 is reduced.

[0062] In some embodiments, such as Figure 3 As shown, the second conductive element 27 has a first conductive end 27a, which is located at one end of the rotating shaft 122 facing the steering wheel cover 21; and / or, the second conductive element 27 has a second conductive end 28a, which is located at one end of the rotating shaft 122 facing the steering wheel cover 21.

[0063] The first conductive end 27a is located at the end of the rotating shaft 122 facing the steering wheel cover 21. One end of the second conductive element 27 is electrically connected to the first conductive contact 261 and passes through the hollow cavity 122a, while the other end is the first conductive end 27a, which is the end of the second conductive element 27 furthest from the first conductive contact 261. By placing the first conductive end 27a at the end of the rotating shaft 122 facing the steering wheel cover 21, it is easier for the first conductive element 23 and the second conductive element 27 to contact and connect electrically. In the second state, the first conductive element 23 contacts the first conductive end 27a and exerts pressure on it. The rotating shaft 122 can provide support for the first conductive end 27a, thereby improving the stability of the electrical connection between the first conductive element 23 and the second conductive element 27.

[0064] Similarly, with the second conductive end 28a located on the side of the rotating shaft 122 facing the steering wheel cover 21, one end of the third conductive element 28 is electrically connected to the second conductive contact 262, and the other end is the second conductive end 28a, which is the end of the third conductive element 28 away from the second conductive contact 262. By placing the second conductive end 28a on the end of the rotating shaft 122 facing the steering wheel cover 21, it is convenient for the first conductive element 23 and the third conductive element 28 to contact and connect electrically. In the second state, the first conductive element 23 contacts the second conductive end 28a and exerts pressure on it. The rotating shaft 122 can provide some support for the second conductive end 28a, thereby improving the stability of the electrical connection between the first conductive element 23 and the third conductive element 28.

[0065] Therefore, by setting the first conductive end 27a or the second conductive end 28a at the end of the rotating shaft 122 facing the steering wheel cover 21, as the first conductive element 23 moves along the first direction X with the steering wheel cover 21, it is easier for the first conductive element 23 to be electrically connected to the second conductive element 27 or the third conductive element 28 more accurately and reliably. The rotating shaft 122 can also provide a certain support for the electrical connection between the first conductive element 23 and the first conductive end 27a or the first conductive element 23 and the second conductive end 28a, thereby improving the stability of the electrical connection between the first conductive element 23 and the second conductive element 27 or the first conductive element 23 and the third conductive end 28.

[0066] In some embodiments, the first conductive end 27a and the second conductive end 28a are arranged radially opposite each other along the rotating shaft 122.

[0067] Understandably, in the first state, the first conductive end 27a and the second conductive end 28a are in contact with and abut against the first conductive element 23, so that the first conductive end 27a and the second conductive end 28a can provide a certain support for the first conductive element 23 and the steering wheel cover 21.

[0068] By setting the first conductive end 27a and the second conductive end 28a to be radially opposite each other along the rotating shaft 122, the support points of the first conductive end 27a and the second conductive end 28a for the steering wheel cover 21 are radially opposite each other along the rotating shaft 122. This helps to improve the support stability of the first conductive end 27a and the second conductive end 28a for the first conductive element 23 and the steering wheel cover 21, reduces the risk of the steering wheel cover 21 tilting, and further improves the stability of the steering wheel cover 21 moving along the first direction X.

[0069] In some embodiments, such as Figure 4 and Figure 5As shown, the first conductive element 23 includes a metal sheet, which includes a first sub-segment 231, a second sub-segment 232, and a connecting segment 233. The connecting segment 233 is connected to the steering wheel cover 21. The first sub-segment 231 and the second sub-segment 232 are located at both ends of the connecting segment 233 and are bent relative to the connecting segment 233 respectively. In the first state, the first sub-segment 231 is electrically connected to the first conductive end 27a, and the second sub-segment 232 is electrically connected to the second conductive end 28a.

[0070] The first conductive element 23 includes a metal sheet to facilitate electrical connection between the second conductive element 27 and the third conductive element 28 in the second state.

[0071] The first conductive element 23 includes a first sub-segment 231, a second sub-segment 232, and a connecting segment 233. The first sub-segment 231 and the second sub-segment 232 are bent relative to the connecting segment 233, which facilitates connection with the steering wheel cover 21 via the connecting segment 233. When the first conductive element 23 moves to the second state along the first direction X with the steering wheel cover 21, the first sub-segment 231 and the second sub-segment 232 can contact and be electrically connected with the second conductive element 27 and the third conductive element 28, respectively. The bending distance and angle of the first sub-segment 231 and the second sub-segment 232 relative to the connecting segment 233 can be set according to the positions of the second conductive element 27 and the third conductive element 28, so that the first sub-segment 231 and the second sub-segment 232 are respectively positioned relative to the first conductive end 27a and the second conductive end 28a along the first direction X.

[0072] Therefore, this configuration facilitates the fixing of the first conductive element 23 to the steering wheel cover 21 via the connecting segment 233, and facilitates the electrical connection of the first sub-segment 231 to the first conductive end 27a and the second sub-segment 232 to the second conductive end 28a, so that in the first state, the purpose of electrically connecting the first conductive element 23 to the second conductive element 27 and the third conductive element 28 can be achieved more reliably.

[0073] In some embodiments, such as Figure 5 As shown, the first segment 231 is arc-shaped, and the center of curvature of the first segment 231 is located on the side of the first segment 231 facing away from the rotation axis 122; and / or, the second segment 232 is arc-shaped, and the center of curvature of the second segment 232 is located on the side of the second segment 232 facing away from the rotation axis 122.

[0074] The first segment 231 is arc-shaped, and the center of curvature of the first segment 231 is located on the side of the first segment 231 facing away from the rotating shaft 122. During the process of the first conductive element 23 changing from the second state to the first state along the first direction X, the arc-shaped surface of the first segment 231 contacts and abuts against the first conductive end 27a. As the steering wheel cover 21 continues to move along the first direction X toward the rotating shaft 122, the first segment 231 can deform in the radial direction toward the steering wheel cover 21 along its own radius of curvature. At the same time, it can maintain the state of contact and electrical connection with the first conductive end 27a, and also buffer the displacement of the first conductive element 23 along the first direction X.

[0075] Similarly, the second segment 232 is arc-shaped, and the radius of curvature of the second segment 232 is located on the side of the second segment 232 facing away from the rotating shaft 122. During the process of the first conductive element 23 changing from the second state to the first state along the first direction X, the arc-shaped surface of the second segment 232 contacts and abuts against the second conductive end 28a. As the steering wheel cover 21 continues to move along the first direction X toward the rotating shaft 122, the second segment 232 can deform in the radial direction toward the steering wheel cover 21 along its own radius of curvature. At the same time, it can maintain the state of contact and electrical connection with the second conductive end 28a, and also buffer the displacement of the first conductive element 23 along the first direction X.

[0076] Therefore, by setting the first segment 231 to be arc-shaped and setting the center of curvature of the first segment 231 to be located on the side of the first segment 231 opposite to the rotating shaft 122, during the movement of the steering wheel cover 21 along the first direction X toward the rotating shaft 122, the first segment 231 can maintain a stable electrical connection with the first conductive end 27a while also buffering the displacement of the first conductive element 23 along the first direction X, thereby reducing the risk of breakage of the first segment 231. Similarly, by setting the second segment 232 to be arc-shaped and setting the center of curvature of the second segment 232 to be located on the side of the second segment 232 opposite to the rotating shaft 122, during the movement of the steering wheel cover 21 along the first direction X toward the rotating shaft 122, the second segment 232 can maintain a stable electrical connection with the second conductive end 28a while also buffering the displacement of the first conductive element 23 along the first direction X, thereby reducing the risk of breakage of the second segment 232.

[0077] In some embodiments, such as Figure 3 As shown, the inner wall of the hollow cavity 122a is provided with a first groove 122b, which extends along the first direction X, and at least a portion of the second conductive member 27 is disposed in the first groove 122b; and / or, the inner wall of the hollow cavity 122a is provided with a second groove 122c, which extends along the first direction X, and at least a portion of the third conductive member 28 is disposed in the second groove 122c.

[0078] The first groove 122b extends along the first direction X. At least a portion of the second conductive element 27 is disposed within the first groove 122b. The second conductive element 27 can then pass through the rotating shaft 122 along the extending direction of the first groove 122b to facilitate electrical connection with the first conductive element 23. Optionally, the second conductive element 27 can be entirely located within the first groove 122b, or a portion of the second conductive element 27 can be located within the first groove 122b.

[0079] The first groove 122b can provide a certain limiting and protection for the second conductive element 27. As the second conductive element 27 rotates with the rotating shaft 122, it helps to reduce the risk of the second conductive element 27 shaking in the hollow cavity 122a, improves the structural stability of the second conductive element 27, and reduces the risk of the second conductive element 27 interfering with other structures.

[0080] Similarly, if the second groove 122c extends along the first direction X, and at least a portion of the third conductive element 28 is disposed within the second groove 122c, then the third conductive element 28 can pass through the rotating shaft 122 along the extending direction of the second groove 122c to facilitate electrical connection with the first conductive element 23. Optionally, the entire third conductive element 28 can be located within the second groove 122c, or a portion of the third conductive element 28 can be located within the second groove 122c.

[0081] The second groove 122c can provide a certain limiting and protection for the third conductive element 28. During the rotation of the third conductive element 28 with the rotating shaft 122, it helps to reduce the risk of the third conductive element 28 shaking in the hollow cavity 122a, improves the structural stability of the third conductive element 28, and reduces the risk of interference between the third conductive element 28 and other structures.

[0082] In some embodiments, the rotating shaft 122 has a first through hole that extends through one end of the rotating shaft 122 toward the steering wheel cover 21, and a second conductive element 27 passes through the first through hole; and / or, the rotating shaft 122 has a second through hole that extends through one end of the rotating shaft 122 toward the steering wheel cover 21, and a third conductive element 28 passes through the second through hole.

[0083] By providing a first through hole that extends along the first direction X through one end of the rotating shaft 122 toward the steering wheel cover 21, the second conductive element 27 can be inserted through the first through hole to facilitate electrical connection between the second conductive element 27 and the first conductive element 23. The first through hole also provides a certain degree of limitation and protection for the second conductive element 27, reducing the additional space occupied by the second conductive element 27 within the motor 12 and reducing the risk of interference between the second conductive element 27 and other structures.

[0084] By providing a second through hole that extends along the first direction X through one end of the rotating shaft 122 toward the steering wheel cover 21, the third conductive element 28 can be inserted through the second through hole to facilitate electrical connection between the third conductive element 28 and the first conductive element 23. The second through hole also provides some limiting and protection for the third conductive element 28, reducing the additional space occupied by the third conductive element 28 within the motor 12 and reducing the risk of interference between the third conductive element 28 and other structures.

[0085] In some embodiments, such as Figure 2 As shown, the steering wheel cover 21 includes a cover body 211 and a guide portion 212. The guide portion 212 is located on the side of the cover body 211 facing the pivot 122, and the elastic member 22 is sleeved on the guide portion 212.

[0086] Optionally, the guide portion 212 can be columnar or grooved, etc., and can be selected according to actual needs.

[0087] During the movement of the steering wheel cover 21 along the first direction X, the elastic element 22 will deform along the first direction X. By providing a guide portion 212 and fitting the elastic element 22 onto the guide portion 212, the guide portion provides a certain guiding effect for the deformation of the elastic element 22 along the first direction X, reducing the risk of unnecessary deformation such as torsion of the elastic element 22, and further improving the stability of the steering wheel cover 21 running along the first direction X.

[0088] In some embodiments, such as Figure 2 As shown, the guide portion 212 is columnar, and the elastic element 22 includes a spring 221, which is sleeved on the guide portion 212.

[0089] The guide portion 212 is columnar, which facilitates the deformation of the elastic element 22 along the first direction X. The elastic element 22 includes a spring 221, which simplifies the structure of the elastic element 22 and allows the spring 221 to be configured with a suitable elastic modulus as needed. Therefore, this configuration further simplifies the overall structure of the electric square steering wheel and further improves the stability of the steering wheel cover 21 as it moves along the first direction X.

[0090] In some embodiments, the second conductive element 27 includes a first conductive wire and a first insulating portion, the first insulating portion covering the outer periphery of the first conductive wire; and / or, the third conductive element 28 includes a second conductive wire and a second insulating portion, the second insulating portion covering the outer periphery of the second conductive wire.

[0091] The second conductive element 27 includes a first conductive wire and a first insulating portion, and the first insulating portion is provided to cover the outer periphery of the first conductive wire. In this way, while facilitating the electrical connection between the second conductive element 27 and the first conductive contact 261 and the first conductive element 23, it also facilitates the insulation of the second conductive element 27 from the rotating shaft 122, reducing the interference of the motor 12 current on the second conductive element 27.

[0092] The third conductive element 28 includes a second conductive wire and a second insulating part, and the second insulating part covers the outer periphery of the second conductive wire. In this way, while facilitating the electrical connection between the third conductive element 28 and the second conductive contact 262 and the first conductive element 23, it also facilitates the insulation of the third conductive element 28 from the rotating shaft 122, reducing the interference of the motor 12 current on the third conductive element 28.

[0093] In some embodiments, such as Figure 2 As shown, the rotating shaft 122 has a hollow cavity 122a, which extends through one end of the rotating shaft 122 toward the steering wheel cover 21. The inner wall of the hollow cavity 122a has a first step 1221. At least a portion of the elastic member 22 is disposed in the hollow cavity 122a and abuts against the first step 1221 and the steering wheel cover 21.

[0094] At least a portion of the elastic element 22 is disposed within the hollow cavity 122a to reduce the space occupied by the elastic element 22 along the first direction X of the motor 12, thereby improving the structural compactness of the electric steering wheel 10. Furthermore, by abutting the elastic element 22 between the first step 1221 and the steering wheel cover 21, the first step 1221 and the steering wheel cover 21 provide a limiting effect on both sides of the elastic element 22 along the first direction X. During the movement of the steering wheel cover 21 towards the pivot 122 along the first direction X, the elastic element 22 can generate compression and store elastic potential energy. After the external force is removed, the steering wheel cover 21, under the action of the elastic potential energy of the elastic element 22, can return to its original position along the first direction X.

[0095] Therefore, this arrangement helps to improve the compactness of the internal structure of the electric steering wheel 10, and facilitates the elastic element 22 to reliably generate compression and store elastic potential energy, so that the elastic element 22 can reliably drive the steering wheel cover 21 back to its original position.

[0096] In some embodiments, such as Figure 2As shown, the steering wheel cover 21 includes a cover body 211 and a stop portion 213. The stop portion 213 is disposed on the side of the cover body 211 facing the rotating shaft 122 and extends a predetermined distance along the first direction X. The rotating shaft 122 has a hollow cavity 122a, which penetrates one end of the rotating shaft 122 facing the steering wheel cover 21. The inner wall of the hollow cavity 122a has a second step 1222. In a first state, the stop portion 213 abuts against the second step 1222. In a second state, the stop portion 213 and the second step 1222 are spaced apart.

[0097] The stop portion 213 can be a cylindrical structure provided on the side of the cover body 211 facing the rotating shaft 122, and sleeved on the outside of the elastic member 22, so as to reduce the risk of the stop portion 213 interfering with the deformation of the elastic member 22.

[0098] In the second state, the stop portion 213 and the second step 1222 are spaced apart, and the steering wheel cover 21 can move along the first direction X toward the pivot 122 until the stop portion 213 abuts against the second step 1222, at which point the first conductive member 23 is in the first state. The distance the stop portion 213 extends along the first direction X can be set according to the position of the second step 1222 and the required travel of the first conductive member 23 along the first direction X, so that when the stop portion 213 abuts against the second step 1222, the first conductive member 23 can electrically connect the second conductive member 27 and the third conductive member 28.

[0099] Therefore, the stop part 213 can provide a certain stop for the movement of the steering wheel cover 21 toward the pivot 122 in the first direction X, so as to reduce the risk of damage to the pivot 122 caused by the steering wheel cover 21 moving too far in the first direction X toward the pivot 122.

[0100] Secondly, such as Figure 1 and Figure 2 As shown, the vehicle 1 provided according to the embodiments of this application includes an electric steering wheel 10 and a horn provided in any of the above embodiments, and the horn is connected in series with the first conductive ring 24 and the second conductive ring 25.

[0101] The horn can be mounted on the body of vehicle 1. The horn is connected in series with the first conductive ring 24 and the second conductive ring 25, so the first conductive ring 24 and the second conductive ring 25 can be connected in series to the positive and negative terminals of the horn, respectively. In the first state, the circuit circuit for driving the horn to produce sound is closed, and the horn produces sound. In the second state, the circuit circuit for driving the horn to produce sound is open, and the horn does not produce sound.

[0102] Vehicle 1 can be an engineering vehicle, a passenger vehicle, or a special vehicle, etc.

[0103] The vehicle 1 provided in this application embodiment has the same technical effect because it adopts the electric steering wheel 10 provided in any of the above embodiments.

[0104] In some embodiments, vehicle 1 is agricultural machinery.

[0105] For example, vehicle 1 can be a tractor, harvester, or seeder, etc.

[0106] If vehicle 1 is agricultural machinery, then the electric steering wheel 10 can be applied to agricultural machinery, which helps to simplify the structure of the electric steering wheel 10 of agricultural machinery and facilitates the more reliable realization of the function of triggering the horn to sound.

[0107] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electric steering wheel, characterized in that, include: Steering wheel seat; An electric motor includes a motor housing and a rotating shaft, the rotating shaft being connected to the steering wheel base and used to drive the steering wheel base to rotate; A steering wheel cover, disposed on the pivot and movable relative to the pivot in a first direction; An elastic element is disposed between the pivot and the steering wheel cover; A first conductive element is disposed on the side of the steering wheel cover facing the pivot. A first conductive ring and a second conductive ring, which are insulated from each other, are insulated in the motor housing and are respectively used to connect in series with the horn; An electric brush, insulated from the rotating shaft, includes a first conductive contact and a second conductive contact that are insulated from each other. The electric brush is configured such that, during rotation with the rotating shaft, the first conductive contact is electrically connected to the first conductive ring and can slide along the first conductive ring, and the second conductive contact is electrically connected to the second conductive ring and can slide along the second conductive ring. as well as, A second conductive element and a third conductive element are insulated from each other and are insulatedly connected to the rotating shaft. The second conductive element is conductively connected to the first conductive contact, and the third conductive element is conductively connected to the second conductive contact. The movement of the steering wheel cover along the first direction can drive the first conductive element to switch between a first state and a second state. In the first state, the first conductive element is in contact with and electrically connected to the second conductive element and the third conductive element, respectively. In the second state, the first conductive element is separated from the second conductive element and the third conductive element, respectively.

2. The electric steering wheel according to claim 1, characterized in that, The first conductive ring and the second conductive ring are disposed at the end of the rotating shaft facing away from the steering wheel cover. The rotating shaft has a hollow cavity, which extends through the end of the rotating shaft facing the steering wheel cover. The second conductive element passes through the hollow cavity along the first direction, and / or the third conductive element passes through the hollow cavity along the first direction.

3. The electric steering wheel according to claim 2, characterized in that, The second conductive element has a first conductive end, which is located at one end of the rotating shaft facing the steering wheel cover; and / or, the second conductive element has a second conductive end, which is located at one end of the rotating shaft facing the steering wheel cover.

4. The electric steering wheel according to claim 3, characterized in that, The first conductive end and the second conductive end are arranged radially opposite each other along the rotating shaft.

5. The electric steering wheel according to claim 3, characterized in that, The first conductive element includes a metal sheet, which includes a first sub-segment, a second sub-segment, and a connecting segment. The connecting segment is connected to the steering wheel cover. The first sub-segment and the second sub-segment are located at both ends of the connecting segment and are bent relative to the connecting segment, respectively. In the first state, the first sub-segment is electrically connected to the first conductive end, and the second sub-segment is electrically connected to the second conductive end.

6. The electric steering wheel according to claim 5, characterized in that, The first segment is arc-shaped, and the center of curvature of the first segment is located on the side of the first segment opposite to the axis of rotation; and / or, the second segment is arc-shaped, and the center of curvature of the second segment is located on the side of the second segment opposite to the axis of rotation.

7. The electric steering wheel according to claim 2, characterized in that, The inner wall of the hollow cavity is provided with a first groove, the first groove extending along the first direction, and at least a portion of the second conductive element is disposed within the first groove; and / or, The inner wall of the hollow cavity is provided with a second groove, which extends along the first direction, and at least a portion of the third conductive element is disposed in the second groove.

8. The electric steering wheel according to claim 1, characterized in that, The rotating shaft has a first through hole, which extends through one end of the rotating shaft facing the steering wheel cover, and the second conductive element passes through the first through hole; and / or... The rotating shaft has a second through hole that extends through one end of the rotating shaft toward the steering wheel cover, and the third conductive element passes through the second through hole.

9. The electric steering wheel according to claim 1, characterized in that, The steering wheel cover includes a cover body and a guide portion. The guide portion is located on the side of the cover body facing the pivot, and the elastic element is sleeved on the guide portion.

10. The electric steering wheel according to claim 9, characterized in that, The guide portion is columnar, and the elastic element includes a spring, which is sleeved on the guide portion.

11. The electric steering wheel according to claim 1, characterized in that, The second conductive element includes a first conductive wire and a first insulating portion, wherein the first insulating portion covers the outer periphery of the first conductive wire; and / or, The third conductive element includes a second conductive wire and a second insulating portion, wherein the second insulating portion covers the outer periphery of the second conductive wire.

12. The electric steering wheel according to any one of claims 1 to 11, characterized in that, The rotating shaft has a hollow cavity that extends through one end of the rotating shaft toward the steering wheel cover. The inner wall of the hollow cavity has a first step. At least a portion of the elastic element is disposed in the hollow cavity and abuts against the first step and the steering wheel cover.

13. The electric steering wheel according to any one of claims 1 to 11, characterized in that, The steering wheel cover includes a cover body and a stop portion. The stop portion is located on the side of the cover body facing the pivot and extends a predetermined distance along the first direction. The rotating shaft has a hollow cavity that extends through one end of the rotating shaft toward the steering wheel cover. The inner wall of the hollow cavity has a second step. In the first state, the stop part abuts against the second step. In the second state, the stop part and the second step are spaced apart.

14. A vehicle, characterized in that, include: The electric steering wheel as described in any one of claims 1 to 13; The speaker is connected in series with the first conductive ring and the second conductive ring.

15. The vehicle according to claim 14, characterized in that, The vehicle in question is agricultural machinery.

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