Electric steering wheel and vehicle

Abstract

The invention provides an electric steering wheel and a vehicle. The electric steering wheel comprises a steering wheel seat, a motor, a steering wheel cover, an elastic part, a first conductive part, a first conductive ring, a second conductive ring, an electric brush, a second conductive part and a third conductive part, the steering wheel cover can move in the first direction to drive the first conductive part to be switched between a first state and a second state, in the first state, the first conductive part makes contact with and is electrically connected with the second conductive part and the third conductive part, and in the second state, the first conductive part is separated from the second conductive part and the third conductive part. According to the electric steering wheel, lines in the electric steering wheel can be simplified, and meanwhile the function of triggering the loudspeaker to make sound can be achieved more reliably.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electric steering wheel and a vehicle. Background Art

[0002] In self-driving vehicles, the electric steering wheel motor is usually used to drive the steering wheel seat to rotate to achieve vehicle turning, lane changing and other operations. The electric steering wheel is usually integrated with a horn trigger function, which triggers the horn on the vehicle body to sound through the relevant structure of the electric steering wheel to alert pedestrians or vehicles in front and behind.

[0003] However, in the related art, in order to realize the horn triggering function, the electric steering wheel usually includes multiple conductive wires, and the multiple wires are connected to the steering wheel seat through connectors such as screws. As a result, the internal structure of the electric steering wheel is relatively complicated. In order 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 realize the function of triggering the horn to sound during the rotation of the motor becomes a problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides an electric steering wheel and a vehicle, which integrate relevant structures into a motor. While realizing the function of triggering a horn to sound during the rotation of the steering wheel, it is helpful to simplify the structure inside the electric steering wheel.

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

[0006] In a first aspect, an embodiment of the present application provides an electric steering wheel, which includes a steering wheel seat, a motor, a steering wheel cover, an elastic member, a first conductive member, a first conductive ring and a second conductive ring insulated from each other, a brush, and a second conductive member and a third conductive member insulated from each other. The motor includes a motor housing and a rotating shaft, the rotating shaft is connected to the steering wheel seat, and is used to drive the steering wheel seat to rotate. The steering wheel cover is arranged on the rotating shaft and can move in a first direction relative to the rotating shaft. The elastic member is arranged between the rotating shaft and the steering wheel cover, and the first conductive member is arranged on the side of the steering wheel cover facing the rotating shaft. The first conductive ring and the second conductive ring are insulated and arranged on the motor housing, and are connected in series with the speaker. The brush is insulated and arranged on the rotating shaft, and the brush includes a first conductive contact and a second conductive contact insulated from each other. The brush is configured such that during the rotation of the rotating shaft, the first conductive contact is conductively connected to the first conductive ring and can slide along the first conductive ring, and the second conductive contact can be electrically connected to the second conductive ring and can slide along the second conductive ring. The second conductive member and the third conductive member are insulated and connected to the rotating shaft, the second conductive member is conductively connected to the first conductive contact, and the third conductive member is conductively connected to the second conductive contact. The movement of the steering wheel cover along the 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.

[0007] In some embodiments, the first conductive ring and the second conductive ring are arranged at the end of the rotating shaft facing away from the steering wheel cover, the rotating shaft has a hollow cavity, the hollow cavity passes through the end of the rotating shaft facing the steering wheel cover, the second conductive member is penetrated in the hollow cavity along the first direction, and / or the third conductive member is penetrated in the hollow cavity along the first direction.

[0008] In some embodiments, the second conductive member has a first conductive end, which is disposed at one end of the rotating shaft facing the steering wheel cover; and / or the second conductive member has a second conductive end, which is 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 disposed opposite to each other along the radial direction of the rotating shaft.

[0010] In some embodiments, the first conductive member 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 arranged 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.

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

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

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

[0014] In some embodiments, the steering wheel cover includes a cover body and a guide portion, wherein the guide portion is disposed on a side of the cover body facing the rotating shaft, and the elastic member is sleeved on the guide portion.

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

[0016] In some embodiments, the second conductive member includes a first conductive wire and a first insulating portion, the first insulating portion is coated on the outer peripheral side of the first conductive wire; and / or, the third conductive member includes a second conductive wire and a second insulating portion, the second insulating portion is coated on the outer peripheral side of the second conductive wire.

[0017] In some embodiments, the rotating shaft has a hollow cavity, which passes 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 part of the elastic member is disposed in the hollow cavity and abuts between the first step and the steering wheel cover.

[0018] In some embodiments, the steering wheel cover includes a cover body and a stopper, wherein the stopper is disposed on a side of the cover body facing the rotating shaft and extends a preset distance along a first direction. The rotating shaft has a hollow cavity, the hollow cavity passes through an end of the rotating shaft facing the steering wheel cover, and the inner wall of the hollow cavity has a second step. In the first state, the stopper abuts against the second step, and in the second state, the stopper is spaced apart from the second step.

[0019] The electric steering wheel provided in the embodiment of the present application is conducive to simplifying the circuit inside the electric steering wheel by arranging the first conductive ring and the second conductive ring on the motor housing, arranging the brush on the rotating shaft, and arranging the second conductive member and the third conductive member on the rotating shaft. 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, so that during the rotation of the rotating shaft, the first conductive contact is always electrically connected to the first conductive ring, and the second conductive contact is always electrically connected to the second conductive ring. In this way, during the rotation of the electric steering wheel, the function of triggering the horn to sound can be more reliably realized. Therefore, the electric steering wheel provided in the embodiment of the present application can simplify the circuit inside the electric steering wheel while also facilitating the function of triggering the horn to sound more reliably.

[0020] In a second aspect, the vehicle provided in an embodiment of the present application includes the electric steering wheel and horn provided in any of the above embodiments, and the horn is electrically connected to the first conductive member.

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

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

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a vehicle provided in the first embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of an electric steering wheel provided in the first embodiment of the present application;

[0027] Figure 3 A schematic diagram of a portion of the structure of an electric steering wheel provided in an embodiment of the present application;

[0028] Figure 4 Another structural schematic diagram of an electric steering wheel provided in an embodiment of the present application;

[0029] Figure 5 A schematic structural diagram of the first conductive component in the electric steering wheel provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1- Vehicle;

[0032] 10-electric steering wheel; 11-steering wheel seat; 12-motor; 121-motor housing; 122-rotating 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 part; 213-stop part; 22-elastic member; 221-spring; 23-first conductive member; 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 member; 27a-first conductive end; 28-third conductive member; 28a-second conductive end;

[0034] X - first direction. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work 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 those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

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

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0040] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0041] First, as Figure 1 , Figure 2 and Figure 3 As shown, the electric steering wheel 10 provided in the embodiment of the present application includes a steering wheel seat 11, a motor 12, a steering wheel cover 21, an elastic member 22, a first conductive member 23, a first conductive ring 24 and a second conductive ring 25 insulated from each other, a brush 26, and a second conductive member 27 and a third conductive member 28 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 seat 11, and is used to drive the steering wheel seat 11 to rotate. The steering wheel cover 21 is covered on the rotating shaft 122 and can move relative to the rotating shaft 122 along the first direction X. The elastic member 22 is arranged between the rotating shaft 122 and the steering wheel cover 21, and the first conductive member 23 is arranged 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 and arranged on the motor housing 121, and are used to be connected in series with the speaker. The brush 26 is insulated and arranged on the rotating shaft 122. The brush 26 includes a first conductive contact 261 and a second conductive contact 262 which are insulated from each other. The brush 26 is configured such that during the rotation of the rotating shaft 122, the first conductive contact 261 is electrically connected to the first conductive ring 24 and can slide along the first conductive ring 24, and the second conductive contact 262 is electrically connected to the second conductive ring 25 and can slide along the second conductive ring 25. The second conductive member 27 and the third conductive member 28 are insulated and connected to the rotating shaft 122. The second conductive member 27 is electrically connected to the first conductive contact 261, and the third conductive member 28 is electrically connected to the second conductive contact 262. The movement of the steering wheel cover 21 along the first direction X can drive the first conductive member 23 to switch between the first state and the second state. In the first state, the first conductive member 23 is in contact with and electrically connected to the second conductive member 27 and the third conductive member 28 respectively. In the second state, the first conductive member 23 is separated from the second conductive member 27 and the third conductive member 28 respectively.

[0042] The electric steering wheel 10 can be applied to the vehicle 1 and installed on the steering wheel bracket in the 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 bearing and other structures. According to the real-time situation of the environment during the operation of the vehicle 1, the rotating shaft 122 of the motor 12 is controlled to rotate through the relevant control module of the vehicle 1, so as to drive the steering wheel seat 11 and the steering wheel cover 21 to rotate together through the rotating shaft 122, and control the rotation angle of the steering wheel seat 11 and the steering wheel cover 21 according to the control signal of the control module, so as to realize the turning or lane changing function of the vehicle 1 during the automatic driving process.

[0043] The steering wheel cover 21 is disposed on the rotating shaft 122 , so as to provide a certain degree of protection for the brush 26 , the second conductive member 27 and the third conductive member 28 disposed on the rotating shaft 122 through the steering wheel cover 21 .

[0044] During the rotation of the shaft 122, the brush 26 disposed on the shaft 122, the second conductive member 27 and the third conductive member 28 connected to the shaft 122, the steering wheel cover 21 covering the shaft 122, and the elastic member 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 rotate relative to the first conductive ring 24 and the second conductive ring 25, and 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] It can be seen that no matter whether the rotating shaft 122 rotates or not, 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 respectively connected in series with the speaker, and the first conductive ring 24 and the second conductive ring 25 can be respectively electrically connected to the positive and negative poles of the speaker. Since the first conductive ring 24 and the second conductive ring 25 are insulated from each other, the risk of internal short circuit of the first conductive ring 24 and the second conductive ring 25 is reduced.

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

[0048] The steering wheel cover 21 can move along the first direction X relative to the rotating shaft 122 to switch the first conductive member 23 between the first state and the second state. The first direction X can be the axial direction of the rotating shaft 122. When the horn is not required to make a sound, the first conductive member 23 is in the second state, the first conductive member 23 is separated from the second conductive member 27 and the third conductive member 28, the circuit in which the horn is located is disconnected, and the horn does not make a sound.

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

[0050] Since the elastic member 22 is disposed between the rotating shaft 122 and the steering wheel cover 21, when the steering wheel cover 21 is converted from the second state to the third state, the steering wheel cover 21 moves toward the rotating shaft 122 along the first direction X, and the elastic member 22 is compressed and stores elastic potential energy. After the horn is finished sounding, the external force is removed, and the steering wheel cover 21 moves away from the rotating shaft 122 along the first direction X under the elastic potential energy of the elastic member 22, and the first conductive member 23 is separated from the second conductive member 27 and the third conductive member 28, and the first state is converted to the second state, and the horn is no longer sounded.

[0051] The first conductive member 23 may be in the form of a sheet, a strip or an irregular shape, and may be an integrally formed structure, or include multiple interconnected parts. The second conductive member 27 and the third conductive member 28 may be in the form of a strip, a block or other shapes, and may be integrally formed, or may be formed by multiple parts being interconnected.

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

[0053] Since the first conductive member 23, the second conductive member 27 and the third conductive member 28 can all rotate with the rotation of the rotating shaft 122, no matter whether the motor 12 is running or the rotating shaft 122 is rotating, the first conductive member 23 is arranged opposite to the second conductive member 27 and the third conductive member 28 in the first direction X in any state. Therefore, during the rotation of the electric steering wheel 10, the function of the speaker sounding can still be realized.

[0054] The first conductive ring 24 and the second conductive ring 25 can be respectively ring-shaped and are respectively connected in series to the positive and negative poles of the speaker through a wiring harness or the like. The first conductive ring 24 and the second conductive ring 25 can be respectively circular ring-shaped, so that when the brush 26 rotates with the rotating shaft 122, the first conductive contact 261 and the first conductive ring 24, and the second conductive contact 262 and the second conductive ring 25 maintain an electrically connected state.

[0055] Since the brush 26 is arranged on the rotating shaft 122, the first conductive ring 24 and the second conductive ring 25 are insulated and arranged on the motor housing 121, and the second conductive member 27 and the third conductive member 28 are arranged on the rotating shaft 122, the relevant circuit structure for triggering the speaker to sound is integrated on the motor 12, which is beneficial to simplify the circuit structure in the electric steering wheel 10 and reduce the space occupied by the relevant circuits.

[0056] The electric steering wheel 10 provided in the embodiment of the present application is advantageous in simplifying the circuits in the electric steering wheel 10 by arranging the first conductive ring 24 and the second conductive ring 25 in the motor housing 121, arranging the brush 26 in the rotating shaft 122, and arranging the second conductive member 27 and the third conductive member 28 in the rotating shaft 122. 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, so that during the rotation of the rotating shaft 122, the first conductive contact 261 is electrically connected to the first conductive ring 24, and the second conductive contact 262 is electrically connected to the second conductive ring 25. In this way, during the rotation of the electric steering wheel 10, the function of triggering the horn to sound can be more reliably realized. Therefore, the electric steering wheel 10 provided in the embodiment of the present application can simplify the circuits in the electric steering wheel 10 while also arranging the function of triggering the horn to sound more reliably.

[0057] In some embodiments, Figure 3 As shown, the first conductive ring 24 and the second conductive ring 25 are arranged at the end of the rotating shaft 122 facing away from the steering wheel cover 21, the rotating shaft 122 has a hollow cavity 122a, the hollow cavity 122a passes through the end of the rotating shaft 122 facing the steering wheel cover 21, the second conductive member 27 is penetrated in the hollow cavity 122a along the first direction X, and / or the third conductive member 28 is penetrated in 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 , and 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 , so that the first conductive ring 24 and the second conductive ring 25 are supported on the housing of the motor 12 .

[0059] In order 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 arranged at one end of the rotating shaft 122 close to the first conductive ring 24 and the second conductive ring 25. Alternatively, the brush 26 can be arranged on the inner wall of the hollow cavity 122a, or the brush 26 can be arranged on the outer surface of the rotating shaft 122 as needed.

[0060] By setting the second conductive member 27 to pass through the hollow cavity 122a along the first direction X, or setting the third conductive member 28 to pass through the hollow cavity 122a along the first direction X, the second conductive member 27 and the third conductive member 28 can be electrically connected through the first conductive member 23 on the steering wheel cover 21, which helps to reduce the risk of interference between the second conductive member 27 or the third conductive member 28 and other structures in the motor 12.

[0061] Therefore, by arranging 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, and the second conductive component 27 and / or the third conductive component 28 is passed through the hollow cavity 122a, which is beneficial to reduce the risk of interference between the second conductive component 27 and / or the third conductive component 28 and other structures in the motor 12.

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

[0063] The first conductive end 27a is disposed at one end of the rotating shaft 122 facing the steering wheel cover 21, and one end of the second conductive member 27 is electrically connected to the first conductive contact 261, and after being passed through the hollow cavity 122a, the other end is the first conductive end 27a, and the first conductive end 27a is the end of the second conductive member 27 away from the first conductive contact 261. By disposing the first conductive end 27a at the end of the rotating shaft 122 facing the steering wheel cover 21, it is convenient for the first conductive member 23 to contact and electrically connect with the second conductive member 27. In the second state, the first conductive member 23 contacts with the first conductive end 27a and generates pressure on the first conductive end 27a, and the rotating shaft 122 can provide support for the first conductive end 27a to improve the stability of the electrical connection between the first conductive member 23 and the second conductive member 27.

[0064] Similarly, the second conductive end 28a is disposed on the side of the rotating shaft 122 facing the steering wheel cover 21, and one end of the third conductive member 28 is electrically connected to the second conductive contact 262, and the other end is the second conductive end 28a, and the second conductive end 28a is the end of the third conductive member 28 away from the second conductive contact 262. By disposing the second conductive end 28a at the end of the rotating shaft 122 facing the steering wheel cover 21, it is convenient for the first conductive member 23 to contact and electrically connect with the third conductive member 28. In the second state, the first conductive member 23 contacts with the second conductive end 28a and generates pressure on the second conductive end 28a, and the rotating shaft 122 can provide a certain support for the second conductive end 28a to improve the stability of the electrical connection between the first conductive member 23 and the third conductive member 28.

[0065] Therefore, by arranging 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, when the first conductive member 23 moves along the first direction X with the steering wheel cover 21, it is convenient for the first conductive member 23 to be more accurately and reliably electrically connected to the second conductive member 27 or the third conductive member 28, and the rotating shaft 122 can provide a certain support for the electrical connection between the first conductive member 23 and the first conductive end 27a or the first conductive member 23 and the second conductive end 28a, so as to improve the stability of the electrical connection between the first conductive member 23 and the second conductive member 27 or the first conductive member 23 and the third conductive member 28.

[0066] In some embodiments, the first conductive end 27 a and the second conductive end 28 a are disposed opposite to each other along the radial direction of the rotating shaft 122 .

[0067] It can be understood that 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 member 23 respectively, so that the first conductive end 27a and the second conductive end 28a can provide certain support for the first conductive member 23 and the steering wheel cover 21.

[0068] By arranging the first conductive end 27a and the second conductive end 28a to be relatively arranged along the radial direction of the rotating shaft 122, the supporting points of the first conductive end 27a and the second conductive end 28a for the steering wheel cover 21 are relatively arranged along the radial direction of the rotating shaft 122, which is beneficial to improving the supporting stability of the first conductive end 27a and the second conductive end 28a for the first conductive member 23 and the steering wheel cover 21, reducing the risk of the steering wheel cover 21 tilting, and further improving the stability of the steering wheel cover 21 moving along the first direction X.

[0069] In some embodiments, Figure 4 and Figure 5As shown, the first conductive member 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 arranged at both ends of the connecting segment 233 and are bent relative to the connecting segment 233. 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 member 23 includes a metal sheet, so that in the second state, the second conductive member 27 and the third conductive member 28 are electrically connected through the metal sheet.

[0071] The first conductive member 23 includes a first sub-segment 231, a second sub-segment 232 and a connecting segment 233, and the first sub-segment 231 and the second sub-segment 232 are bent relative to the connecting segment 233, so that it is convenient to connect with the steering wheel cover 21 through the connecting segment 233, and when the first conductive member 23 moves to the second state along the first direction X with the steering wheel cover 21, it is convenient for the first sub-segment 231 and the second sub-segment 232 to contact and be electrically connected with the second conductive member 27 and the third conductive member 28 respectively, and it is convenient to set the bending distance and angle of the first sub-segment 231 and the second sub-segment 232 relative to the connecting segment 233 according to the positions of the second conductive member 27 and the third conductive member 28, so that the first sub-segment 231 and the second sub-segment 232 are respectively arranged relative to the first conductive end 27a and the second conductive end 28a along the first direction X.

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

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

[0074] The first sub-segment 231 is arc-shaped, and the center of curvature of the first sub-segment 231 is located on the side of the first sub-segment 231 that is away from the rotating shaft 122. Therefore, when the first conductive member 23 is transformed from the second state to the first state along the first direction X, the arcuate surface of the first sub-segment 231 contacts and abuts against the first conductive end 27a, and as the steering wheel cover 21 continues to move along the first direction X toward the rotating shaft 122, the first sub-segment 231 can be deformed along the radial direction of its own curvature radius toward the steering wheel cover 21, while maintaining contact and electrical connection with the first conductive end 27a, and can also buffer the displacement of the first conductive member 23 along the first direction X.

[0075] Similarly, the second sub-segment 232 is arc-shaped, and the curvature radius of the second sub-segment 232 is located on the side of the second sub-segment 232 that is away from the rotating shaft 122. Then, in the process of the first conductive member 23 being transformed from the second state to the first state along the first direction X, the arcuate surface of the second sub-segment 232 contacts and abuts against the second conductive end 28a, and as the steering wheel cover 21 continues to move along the first direction X toward the rotating shaft 122, the second sub-segment 232 can deform along the radial direction of its own curvature radius toward the steering wheel cover 21, while maintaining contact and electrical connection with the second conductive end 28a, and can also buffer the displacement of the first conductive member 23 along the first direction X.

[0076] Therefore, by setting the first sub-segment 231 to be arc-shaped and setting the center of curvature of the first sub-segment 231 to be located at the side of the first sub-segment 231 that is not facing the rotating shaft 122, when the steering wheel cover 21 moves along the first direction X toward the rotating shaft 122, it is convenient for the first sub-segment 231 to maintain a stable electrical connection with the first conductive end 27a while also facilitating the displacement of the first conductive member 23 along the first direction X, thereby reducing the risk of the first sub-segment 231 being broken. Similarly, by setting the second sub-segment 232 to be arc-shaped and setting the center of curvature of the second sub-segment 232 to be located at the side of the second sub-segment 232 that is not facing the rotating shaft 122, when the steering wheel cover 21 moves along the first direction X toward the rotating shaft 122, it is convenient for the second sub-segment 232 to maintain a stable electrical connection with the second conductive end 28a while also facilitating the displacement of the first conductive member 23 along the first direction X, thereby reducing the risk of the second sub-segment 232 being broken.

[0077] In some embodiments, Figure 3 As shown, the inner wall of the hollow cavity 122a is provided with a first groove 122b, the first groove 122b 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, the second groove 122c 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, and at least a portion of the second conductive member 27 is disposed in the first groove 122b. The second conductive member 27 can be disposed through the rotating shaft 122 along the extension direction of the first groove 122b, so as to be electrically connected to the first conductive member 23. Optionally, the second conductive member 27 can be entirely disposed in the first groove 122b, or a portion of the second conductive member 27 can be disposed in the first groove 122b.

[0079] The first groove 122b can provide a certain limit and protection function for the second conductive member 27. When the second conductive member 27 rotates along with the rotating shaft 122, it is beneficial to reduce the risk of the second conductive member 27 shaking in the hollow cavity 122a, which is beneficial to improve the structural stability of the second conductive member 27 and reduce the risk of interference between the second conductive member 27 and other structures.

[0080] Similarly, the second groove 122c extends along the first direction X, and at least a portion of the third conductive member 28 is disposed in the second groove 122c. The third conductive member 28 can be disposed through the rotating shaft 122 along the extension direction of the second groove 122c, so as to be electrically connected to the first conductive member 23. Optionally, the entire third conductive member 28 can be disposed in the second groove 122c, or a portion of the third conductive member 28 can be disposed in the second groove 122c.

[0081] The second groove 122c can provide a certain limit and protection function for the third conductive member 28. When the third conductive member 28 rotates along with the rotating shaft 122, it is beneficial to reduce the risk of the third conductive member 28 shaking in the hollow cavity 122a, which is beneficial to improve the structural stability of the third conductive member 28 and reduce the risk of interference between the third conductive member 28 and other structures.

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

[0083] By setting a first through hole penetrating through one end of the rotating shaft 122 toward the steering wheel cover 21 along the first direction X, the second conductive member 27 can be passed through the first through hole to facilitate the electrical connection between the second conductive member 27 and the first conductive member 23. The first through hole provides a certain limit and protection function for the second conductive member 27, reduces the extra space inside the motor 12 occupied by the second conductive member 27, and reduces the risk of interference between the second conductive member 27 and other structures.

[0084] By setting a second through hole penetrating through one end of the rotating shaft 122 toward the steering wheel cover 21 along the first direction X, the third conductive member 28 can be passed through the second through hole to facilitate the electrical connection between the third conductive member 28 and the first conductive member 23. The second through hole provides a certain limit and protection function for the third conductive member 28, reduces the extra space inside the motor 12 occupied by the third conductive member 28, and reduces the risk of interference between the third conductive member 28 and other structures.

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

[0086] Optionally, the guide portion 212 may be in a columnar shape or a groove shape, etc., which may be selected according to actual needs.

[0087] When the steering wheel cover 21 moves along the first direction X, the elastic member 22 will be deformed along the first direction X. By providing the guide portion 212 and arranging the elastic member 22 to be sleeved on the guide portion 212, a certain guiding effect is provided for the deformation of the elastic member 22 along the first direction X through the wire portion, thereby reducing the risk of unnecessary deformation such as torsion of the elastic member 22, and further facilitating the stability of the steering wheel cover 21 in the first direction X.

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

[0089] The guide portion 212 is columnar, which facilitates the elastic member 22 to deform along the guide portion 212 along the first direction X. The elastic member 22 includes a spring 221, which is conducive to simplifying the structure of the elastic member 22, and the spring 221 can be set to have a suitable elastic modulus as required. Therefore, such a setting is conducive to further simplifying the overall structure of the electric square plate, and is conducive to further improving the stability of the steering wheel cover 21 moving along the first direction X.

[0090] In some embodiments, the second conductive member 27 includes a first conductive wire and a first insulating portion, the first insulating portion is coated on the outer peripheral side of the first conductive wire; and / or, the third conductive member 28 includes a second conductive wire and a second insulating portion, the second insulating portion is coated on the outer peripheral side of the second conductive wire.

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

[0092] The third conductive member 28 includes a second conductive wire and a second insulating portion, and the second insulating portion is provided to cover the outer peripheral side of the second conductive wire. In this way, while the third conductive member 28 is conveniently electrically connected to the second conductive contact 262 and the first conductive member 23, it is also convenient to achieve insulation between the third conductive member 28 and the rotating shaft 122, thereby reducing the interference of the current of the motor 12 on the third conductive member 28.

[0093] In some embodiments, Figure 2 As shown, the rotating shaft 122 has a hollow cavity 122a, which passes through one end of the rotating shaft 122 facing 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 between the first step 1221 and the steering wheel cover 21.

[0094] At least part of the elastic member 22 is disposed in the hollow cavity 122a to reduce the space occupied by the elastic member 22 of the motor 12 along the first direction X, which is conducive to improving the compactness of the structure of the electric steering wheel 10. The elastic member 22 is abutted between the first step 1221 and the steering wheel cover 21, so that the first step 1221 and the steering wheel cover 21 provide a limiting effect for both sides of the elastic member 22 along the first direction X, so that when the steering wheel cover 21 moves toward the rotating shaft 122 along the first direction X, the elastic member 22 can be compressed and store elastic potential energy, and after the external force is removed, the steering wheel cover 21 can return to its original position along the first direction X under the elastic potential energy of the elastic member 22.

[0095] Therefore, such a configuration is conducive to improving the compactness of the internal structure of the electric steering wheel 10, and facilitates the elastic member 22 to reliably generate compression and store elastic potential energy, so that the elastic member 22 can reliably drive the steering wheel cover 21 to return to its original position.

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

[0097] The stopper 213 may be a cylindrical structure disposed on the side of the cover body 211 facing the rotation shaft 122 and sleeved on the outside of the elastic member 22 to reduce the risk of the stopper 213 interfering with the deformation of the elastic member 22 .

[0098] In the second state, the stopper 213 is spaced from the second step 1222, and the steering wheel cover 21 can move along the first direction X toward the rotation shaft 122 until the stopper 213 abuts against the second step 1222, and the first conductive member 23 is in the first state. The distance that the stopper 213 extends along the first direction X can be set according to the position of the second step 1222 and the stroke required for the first conductive member 23 along the first direction X, so that when the stopper 213 abuts against the second step 1222, the first conductive member 23 can be electrically connected to the second conductive member 27 and the third conductive member 28.

[0099] Therefore, the stopper 213 can provide a certain stopping effect for the movement of the steering wheel cover 21 along the first direction X toward the rotating shaft 122, so as to reduce the risk of damaging the rotating shaft 122 due to the steering wheel cover 21 moving too long along the first direction X toward the rotating shaft 122.

[0100] Second, as Figure 1 and Figure 2 As shown, the vehicle 1 provided according to an embodiment of the present application includes the electric steering wheel 10 and the 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 installed on the body of the vehicle 1, and the horn is connected in series with the first conductive ring 24 and the second conductive ring 25, and the first conductive ring 24 and the second conductive ring 25 can be connected in series with the positive electrode and the negative electrode of the horn respectively. In the first state, the circuit loop for driving the horn to sound is in a closed state, and the horn sounds. In the second state, the circuit loop for driving the horn to sound is in an open state, and the horn does not sound.

[0102] The vehicle 1 may be an engineering vehicle, a passenger car, a special vehicle, or the like.

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

[0104] In some embodiments, the vehicle 1 is an agricultural machine.

[0105] For example, the vehicle 1 may be a tractor, a harvester, a seed drill, or the like.

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

[0107] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present 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; A motor, comprising a motor housing and a rotating shaft, wherein the rotating shaft is connected to the steering wheel seat and is used to drive the steering wheel seat to rotate; A steering wheel cover, which is disposed on the rotating shaft and is movable along a first direction relative to the rotating shaft; An elastic member, disposed between the rotating shaft and the steering wheel cover; A first conductive member, disposed on a side of the steering wheel cover facing the rotating shaft; A first conductive ring and a second conductive ring are insulated from each other, are insulated and arranged on the motor housing, and are respectively used to be connected in series with the speaker; A brush is insulated and arranged on the rotating shaft, the brush comprises a first conductive contact and a second conductive contact which are insulated from each other, and the brush is configured such that during the rotation of the rotating shaft, the first conductive contact is conductively 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 member and a third conductive member insulated from each other are insulated and connected to the rotating shaft, the second conductive member is conductively connected to the first conductive contact, and the third conductive member is conductively connected to the second conductive contact; The movement of the steering wheel cover along the 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.

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

3. The electric steering wheel according to claim 2, characterized in that: The second conductive member has a first conductive end, which is arranged at one end of the rotating shaft facing the steering wheel cover; and / or the second conductive member has a second conductive end, which is arranged 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 opposite to each other along the radial direction of the rotating shaft.

5. The electric steering wheel according to claim 3, characterized in that: The first conductive member 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 arranged at two 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 subsegment is arc-shaped, and the center of curvature of the first subsegment is located on the side of the first subsegment facing away from the rotation axis; and / or the second subsegment is arc-shaped, and the center of curvature of the second subsegment is located on the side of the second subsegment facing away from the rotation axis.

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 extends along the first direction, and at least a part of the second conductive member is provided in the first groove; and / or, The inner wall of the hollow cavity is provided with a second groove, the second groove extends along the first direction, and at least a part of the third conductive member 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, the first through hole passes through one end of the rotating shaft toward the steering wheel cover, and the second conductive member is inserted through the first through hole; and / or, The rotating shaft has a second through hole, the second through hole passes through one end of the rotating shaft facing the steering wheel cover, and the third conductive member is inserted through the second through hole.

9. The electric steering wheel according to claim 1, characterized in that: The steering wheel cover comprises a cover body and a guide portion, wherein the guide portion is arranged on a side of the cover body facing the rotating shaft, and the elastic member 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 member comprises a spring, which is sleeved on the guide portion.

11. The electric steering wheel according to claim 1, characterized in that: The second conductive member includes a first conductive wire and a first insulating portion, wherein the first insulating portion is coated on the outer peripheral side of the first conductive wire; and / or, The third conductive member includes a second conductive wire and a second insulating portion, wherein the second insulating portion is coated on an outer peripheral side 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 which passes 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 part of the elastic member 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 comprises a cover body and a stopper, wherein the stopper is arranged on one side of the cover body facing the rotating shaft and extends a preset distance along the first direction; The rotating shaft has a hollow cavity, which passes 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 stopper abuts against the second step. In the second state, the stopper is spaced apart from the second step.

14. A vehicle, characterized in that: include: An electric steering wheel as claimed in any one of claims 1 to 13; A 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 is an agricultural machine.

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