Electric tail wing driving device, electric tail wing system and automobile

Abstract

The present disclosure provides an electric tail wing driving device, comprising: a motor unit, the motor unit can output a rotational motion around a first axial direction; a gear assembly, the gear assembly receives the rotational motion around the first axial direction output by the motor unit and converts it into a rotational motion around a second axial direction; and an output shaft assembly, the output shaft assembly receives the rotational motion around the second axial direction of the gear assembly and outputs the rotational motion around the first axial direction, and the rotational motion output by the output shaft assembly can drive the electric tail wing. The present disclosure also provides an automobile electric tail wing system and an automobile.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile tail wings, and in particular relates to an electric tail wing driving device, an electric tail wing system and an automobile. Background Art

[0002] With the increasingly widespread application of automobile lightweight technology, the weight of the entire vehicle is getting lighter and lighter, resulting in insufficient grip when the vehicle is driving at high speed, which reduces the handling of the entire vehicle. In serious cases, it may cause the vehicle to lose control and cause a traffic accident.

[0003] To this end, electric rear wing systems that can automatically adjust their position according to vehicle speed are becoming more and more widely used.

[0004] The electric rear wing system needs to adjust the position of the rear wing according to the vehicle speed. When the vehicle is driving at a low speed, the rear wing is folded to reduce wind resistance and improve fuel consumption; as the vehicle speed increases, the rear wing gradually rises to improve the vehicle's aerodynamic performance, enhance handling and high-speed driving safety.

[0005] The electric tail wing system in the prior art has a complex structure and poor reliability. Summary of the invention

[0006] In order to solve at least one of the above technical problems, the present disclosure provides an electric tail wing driving device, an electric tail wing system and a car.

[0007] According to one aspect of the present disclosure, there is provided an electric tail wing driving device, comprising:

[0008] A motor unit, wherein the motor unit is capable of outputting a rotational motion around a first axial direction;

[0009] a gear assembly, the gear assembly receiving the rotational motion around the first axial direction output by the motor unit and converting the rotational motion around the second axial direction; and

[0010] An output shaft assembly receives the rotational motion of the gear assembly rotating around the second axial direction and outputs the rotational motion rotating around the first axial direction, and the rotational motion output by the output shaft assembly can drive the electric tail wing.

[0011] According to at least one embodiment of the electric tail wing drive device of the present disclosure, it also includes a switch part. When the output shaft assembly outputs a predetermined amount of rotational movement, the switch part can be triggered by the output shaft assembly and output a trigger signal. Based on the trigger signal output by the switch part, the motor unit can be controlled to stop the output of the rotational movement.

[0012] According to the electric tail drive device of at least one embodiment of the present disclosure, the motor unit includes a motor and a first worm part, the motor is fixedly connected to the first worm part, and the motor unit outputs the rotational motion around the first axial direction through the first worm part.

[0013] According to the electric tail drive device of at least one embodiment of the present disclosure, the motor unit further includes a first flexible sleeve and a second flexible sleeve, and the first flexible sleeve and the second flexible sleeve are respectively sleeved on the first end and the second end of the motor.

[0014] According to the electric tail drive device of at least one embodiment of the present disclosure, the motor unit further includes an elastic coupling, and the elastic coupling is disposed between the output shaft of the motor and the first worm portion.

[0015] According to the electric tail drive device of at least one embodiment of the present disclosure, the motor unit also includes a first bearing portion and a first sleeve portion, the first bearing portion is arranged at one end of the first worm portion adjacent to the elastic coupling, and the first sleeve portion is arranged at the other end of the first worm portion.

[0016] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the gear assembly includes a gear portion and a second worm portion, the gear portion is fixedly connected to the second worm portion, the gear portion is used to receive the rotational motion around the first axial direction output by the motor unit, and the second worm portion is used to transmit the rotational motion around the second axial direction to the output shaft assembly.

[0017] According to the electric tail drive device of at least one embodiment of the present disclosure, the gear assembly includes a second bearing portion and a second sleeve portion, the second bearing portion is arranged at the first end of the gear assembly and adjacent to the gear portion, and the second sleeve portion is arranged at the second end of the gear assembly and adjacent to the second worm portion.

[0018] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the output shaft assembly includes an output shaft and an output shaft gear, the output shaft gear is sleeved on the output shaft and fixedly connected to the output shaft, the output shaft gear is used to receive the rotational motion of the gear assembly around the second axial direction, and the output shaft outputs the rotational motion around the first axial direction.

[0019] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the output shaft assembly further includes a switch triggering portion, and the output shaft assembly triggers the switch portion through the switch triggering portion.

[0020] According to at least one embodiment of the electric tail wing driving device of the present disclosure, the switch triggering part includes a triggering rod, a driving rod and a limiting part, and the switch triggering part triggers the switch part through the triggering rod;

[0021] The driving rod is sleeved on the output shaft and fixedly connected to the output shaft, the trigger rod is sleeved on the output shaft, and the limiting portion is sleeved on the driving rod;

[0022] When the switch triggering part does not trigger the switch part, the limiting part keeps the triggering rod and the driving rod in a following state, so that the triggering rod rotates following the driving rod.

[0023] According to the electric tail wing drive device of at least one embodiment of the present disclosure, when the trigger rod of the switch trigger part triggers the switch part, the trigger rod and the drive rod release the following state, and the limiting part absorbs the kinetic energy of the drive rod after the trigger rod and the drive rod release the following state.

[0024] According to at least one embodiment of the electric tail wing drive device of the present disclosure, the limiting portion is a limiting spring, and the limiting spring has a first hook and a second hook;

[0025] The trigger lever comprises a plane portion and a first flange portion, wherein the plane portion is used to trigger the switch portion, and the first flange portion is used to hang the first hook;

[0026] The trigger rod has a through hole portion, through which the trigger rod is loosely sleeved onto the output shaft, so that the trigger rod can rotate around the output shaft;

[0027] The driving rod has a second flange portion, and the second flange portion is used for hanging the second hook.

[0028] According to the electric tail wing driving device of at least one embodiment of the present disclosure, the trigger rod and the driving rod are clamped by the first hook and the second hook.

[0029] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the first flange portion and the second flange portion have the same size along the axial direction of the output shaft, so that when the switch trigger portion is not triggered, the trigger rod and the drive rod can be limited to a certain position by the limit spring without relative movement.

[0030] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the first axial direction and the second axial direction are perpendicular to each other.

[0031] According to the electric tail wing drive device of at least one embodiment of the present disclosure, the first flexible sleeve and the second flexible sleeve are both rubber sleeves.

[0032] According to at least one embodiment of the present disclosure, the electric tail drive device further includes a first shell and a second shell, which form a receiving space to receive the motor unit, the gear assembly, the output shaft assembly and the switch portion of the electric tail drive device.

[0033] According to another aspect of the present disclosure, there is provided an electric rear wing system for an automobile, comprising:

[0034] Electric rear wing; and

[0035] The electric tail wing driving device of any one of the above items, wherein the electric tail wing can be driven by the electric tail wing driving device.

[0036] According to another aspect of the present disclosure, there is provided an automobile, comprising:

[0037] The above-mentioned automotive electric rear wing system; and

[0038] A vehicle control system controls an electric tail wing drive device of the vehicle electric tail wing system based on the vehicle speed, so that the electric tail wing drive device drives the electric tail wing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0040] Figure 1 Schematic diagram of the structure of an electric tail wing drive device according to an embodiment of the present invention.

[0041] Figure 2 Schematic diagram of the structure of a motor unit of an electric tail wing drive device according to an embodiment of the present invention.

[0042] Figure 3 Schematic diagram of the structure of a gear assembly of an electric tail wing drive device according to an embodiment of the present disclosure.

[0043] Figure 4 Schematic diagram of the structure of an output shaft assembly of an electric tail wing drive device according to an embodiment of the present disclosure.

[0044] Figure 5 1 is a schematic structural diagram of a switch triggering unit of an electric tail wing driving device according to an embodiment of the present disclosure.

[0045] Figure 6It is a structural schematic diagram of a switch triggering portion of an electric tail wing drive device according to an embodiment of the present invention from another perspective.

[0046] Figure 7 It is a schematic diagram of the partial structure of an electric tail wing drive device in a first state according to an embodiment of the present disclosure.

[0047] Figure 8 It is a schematic diagram of the partial structure of the electric tail wing drive device in the second state according to one embodiment of the present disclosure.

[0048] Fig. 9 It is one of the structural schematic diagrams of an electric tail wing drive device assembly according to an embodiment of the present disclosure.

[0049] Fig.10 This is the second structural schematic diagram of the electric tail wing drive device assembly according to an embodiment of the present disclosure.

[0050] Description of Reference Numerals

[0051] 10 First shell

[0052] 20 Motor unit

[0053] 30 Gear assembly

[0054] 40 Output shaft assembly

[0055] 50 Switch

[0056] 60 Second shell

[0057] 100 Electric tail drive

[0058] 201 Motor

[0059] 202 First Flexible Sleeve

[0060] 203 Second flexible sleeve

[0061] 204 Elastic Coupling

[0062] 205 First worm gear

[0063] 206 First bearing part

[0064] 207 First Bushing

[0065] 301 Second bearing

[0066] 302 Gear Department

[0067] 303 Second worm gear

[0068] 304 Second sleeve

[0069] 401 Output shaft

[0070] 402 Output shaft gear

[0071] 403 Trigger lever

[0072] 404 Limiting part

[0073] 405 drive rod

[0074] 4031 First Flanging Department

[0075] 4032 Plane

[0076] 4033 Through hole part

[0077] 4041 First Hook

[0078] 4042 Second hook

[0079] 4051 Second flange portion. DETAILED DESCRIPTION

[0080] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0081] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0082] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0083] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0084] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0085] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., in a "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0086] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0087] Combination Figures 1 to 10 The electric tail wing driving device disclosed in the present invention will be described in detail.

[0088] like Figures 1 to 10 As shown, an electric tail wing driving device 100 according to an embodiment of the present disclosure includes:

[0089] The motor unit 20 is capable of outputting a rotational motion around a first axial direction;

[0090] a gear assembly 30, which receives the rotational motion of the motor unit 20 about the first axial direction and converts it into a rotational motion of the motor unit 20 about the second axial direction; and

[0091] The output shaft assembly 40 receives the rotational motion of the gear assembly 30 about the second axial direction and outputs the rotational motion about the first axial direction. The rotational motion output by the output shaft assembly 40 can drive the electric tail wing.

[0092] The electric tail wing drive device 100 of the present invention transmits the movement of the motor to the tail wing through the motor unit 20, the gear assembly 30 and the output shaft assembly 40, so that the tail wing can be automatically raised to a required position according to the needs of the whole vehicle, so as to effectively improve the handling performance of the whole vehicle.

[0093] According to a preferred embodiment of the present disclosure, the electric tail wing drive device 100 also includes a switch unit 50. When the output shaft assembly 40 outputs a predetermined amount of rotational movement, the switch unit 50 can be triggered by the output shaft assembly 40 and output a trigger signal. Based on the trigger signal output by the switch unit 50, the motor unit 20 can be controlled to stop the output of the rotational movement.

[0094] Figure 1 The switch section 50 is shown in FIG.

[0095] According to a preferred embodiment of the present disclosure, the motor unit 20 of the electric tail wing drive device 100 includes a motor 201 and a first worm part 205, the motor 201 is fixedly connected to the first worm part 205, and the motor unit 20 outputs a rotational motion around a first axial direction through the first worm part 205.

[0096] Figure 2 Schematic diagram of the structure of a motor unit of an electric tail wing drive device according to an embodiment of the present invention.

[0097] Preferably, the motor unit 20 of the electric tail driving device 100 further includes a first flexible sleeve 202 and a second flexible sleeve 203 , and the first flexible sleeve 202 and the second flexible sleeve 203 are respectively sleeved on the first end and the second end of the motor 201 .

[0098] The first flexible sleeve 202 and the second flexible sleeve 203 are used to block the vibration of the motor and improve the sound quality of the electric tail wing driving device.

[0099] More preferably, the motor unit 20 of the electric tail driving device 100 further includes an elastic coupling 204 , and the elastic coupling 204 is disposed between the output shaft of the motor 201 and the first worm part 205 .

[0100] The elastic coupling 204 is used to eliminate the manufacturing tolerance between the motor output shaft and the worm and to block the transmission of vibration.

[0101] According to a preferred embodiment of the present disclosure, the motor unit 20 of the electric tail wing drive device 100 also includes a first bearing portion 206 and a first sleeve portion 207. The first bearing portion 206 is arranged at one end of the first worm portion 205 adjacent to the elastic coupling 204, and the first sleeve portion 207 is arranged at the other end of the first worm portion 205.

[0102] The first bearing portion 206 and the first sleeve portion 207 can reduce the friction force of the worm rotation and improve the transmission efficiency.

[0103] According to a preferred embodiment of the present disclosure, the gear assembly 30 of the electric tail wing drive device 100 includes a gear portion 302 and a second worm portion 303, the gear portion 302 is fixedly connected to the second worm portion 303, the gear portion 302 is used to receive the rotational motion around the first axial direction output by the motor unit 20, and the second worm portion 303 is used to transmit the rotational motion around the second axial direction to the output shaft assembly 40.

[0104] Figure 3 Schematic diagram of the structure of a gear assembly of an electric tail wing drive device according to an embodiment of the present disclosure.

[0105] Preferably, the gear assembly 30 of the electric tail driving device 100 includes a second bearing portion 301 and a second sleeve portion 304 , wherein the second bearing portion 301 is disposed at a first end of the gear assembly 30 and adjacent to the gear portion 302 , and the second sleeve portion 304 is disposed at a second end of the gear assembly 30 and adjacent to the second worm portion 303 .

[0106] The second bearing portion 301 and the second sleeve portion 304 can reduce the friction force of the rotation of the gear assembly and improve the transmission efficiency of the system.

[0107] According to a preferred embodiment of the present disclosure, the output shaft assembly 40 of the electric tail wing drive device 100 includes an output shaft 401 and an output shaft gear 402. The output shaft gear 402 is sleeved on the output shaft 401 and fixedly connected to the output shaft 401. The output shaft gear 402 is used to receive the rotational motion of the gear assembly 30 around the second axial rotation, and the output shaft 401 outputs the rotational motion around the first axial rotation.

[0108] By designing an output shaft 401 in the output shaft assembly 40 and connecting it to the tail wing, the movement of the electric tail wing driving device 100 is transmitted to the tail wing, so as to push the tail wing to move to a required position.

[0109] Figure 4 Schematic diagram of the structure of an output shaft assembly of an electric tail wing drive device according to an embodiment of the present disclosure.

[0110] According to a preferred embodiment of the present disclosure, the output shaft assembly 40 of the electric tail wing driving device 100 further includes a switch triggering portion, and the output shaft assembly 40 triggers the switch portion 50 through the switch triggering portion.

[0111] Figure 5 1 is a schematic structural diagram of a switch triggering unit of an electric tail wing driving device according to an embodiment of the present disclosure. Figure 6 It is a structural schematic diagram of a switch triggering portion of an electric tail wing drive device according to an embodiment of the present invention from another perspective.

[0112] like Figure 5 and Figure 6 As shown, preferably, the switch triggering part of the electric tail wing driving device 100 includes a trigger rod 403, a driving rod 405 and a limit part 404, and the switch triggering part triggers the switch part 50 through the trigger rod 403;

[0113] The driving rod 405 is sleeved on the output shaft 401 and fixedly connected to the output shaft 401 , the trigger rod 403 is sleeved on the output shaft 401 , and the limiting portion 404 is sleeved on the driving rod 405 ;

[0114] When the switch triggering part does not trigger the switch part 50 , the limiting part 404 keeps the triggering rod 403 and the driving rod 405 in a following state, so that the triggering rod 403 rotates following the driving rod 405 .

[0115] Furthermore, when the trigger rod 403 of the switch triggering part triggers the switch part 50, the trigger rod 403 and the driving rod 405 cancel the following state, and the limiting part 404 absorbs the kinetic energy of the driving rod 405 after the trigger rod 403 and the driving rod 405 cancel the following state.

[0116] According to a preferred embodiment of the present disclosure, the limiting portion 404 of the electric tail wing driving device 100 is a limiting spring, and the limiting spring has a first hook 4041 and a second hook 4042;

[0117] The trigger lever 403 has a flat portion 4032 and a first flange portion 4031 . The flat portion 4032 is used to trigger the switch portion 50 , and the first flange portion 4031 is used to hang a first hook 4041 .

[0118] The trigger rod 403 has a through hole portion 4033 , through which the trigger rod 403 is loosely sleeved onto the output shaft 401 , so that the trigger rod 403 can rotate around the output shaft 401 ;

[0119] The driving rod 405 has a second flange portion 4051 , and the second flange portion 4051 is used for hanging the second hook 4042 .

[0120] Preferably, the trigger rod 403 and the driving rod 405 of the electric tail wing driving device 100 are clamped by the first hook 4041 and the second hook 4042 .

[0121] Preferably, the first flange portion 4031 and the second flange portion 4051 of the electric tail wing drive device 100 have the same size along the axial direction of the output shaft 401, so that when the switch trigger part does not trigger the switch part 50, the trigger rod 403 and the drive rod 405 can be limited to a certain position by the limit spring without relative movement, thereby indicating the position of the output shaft 401.

[0122] In each of the above embodiments, preferably, the first axial direction and the second axial direction are perpendicular to each other.

[0123] In the above-mentioned various embodiments, preferably, the first flexible sleeve 202 and the second flexible sleeve 203 are both rubber sleeves.

[0124] Fig. 9 It is one of the structural schematic diagrams of an electric tail wing drive device assembly according to an embodiment of the present disclosure.

[0125] Fig.10This is the second structural schematic diagram of the electric tail wing drive device assembly according to an embodiment of the present disclosure.

[0126] like Figure 8 and Fig.10 As shown, the electric tail driving device 100 further includes a first housing 10 and a second housing 60 , which form a receiving space to receive the motor unit 20 , the gear assembly 30 , the output shaft assembly 40 and the switch unit 50 of the electric tail driving device 100 .

[0127] Combined with the following Figure 7 and Figure 8 The working principle of the electric tail wing drive device disclosed in the present invention is described in detail.

[0128] Figure 7 This is the first state of the electric tail wing driving device of the present disclosure. The first worm portion 205 of the motor unit 20 cooperates with the gear portion 302 of the gear assembly 30 to transmit the power of the motor unit 20 to the gear assembly 30 .

[0129] The second worm part 303 in the gear assembly 30 meshes with the output shaft gear 402 on the output shaft assembly 40, transmitting the movement of the gear assembly 30 to the output shaft assembly 40, and outputting it to the tail wing through the output shaft 401 in the output shaft assembly 40, driving the tail wing to move to a suitable position.

[0130] Preferably, the second worm part 303 and the output shaft gear 402 are designed as a self-locking structure, and the output shaft assembly 40 can only rotate under the drive of the motor unit 20. When the motor is powered off, the entire electric tail drive device and the tail will remain in this position due to the self-locking characteristics of the second worm part 303 and the output shaft gear 402. At the same time, a Hall signal sensor is preferably provided in the motor of the motor unit 20 to record the number of revolutions of the motor, so that the entire electric tail drive device and the tail can be stopped at any desired position.

[0131] Preferably, a trigger rod 403 , a limit spring and a drive rod 405 are designed on the output shaft assembly 40 .

[0132] The driving rod 405 is fixedly connected to the output shaft 401 and rotates along with the output shaft 401 .

[0133] Before the trigger rod 403 triggers the switch unit 50, under the action of the limit spring, the trigger rod 403 rotates together with the driving rod 405. After the trigger rod 403 triggers the switch unit 50, as shown in FIG. Figure 8 As shown, the motor unit 20 will be stopped, so that the output shaft 401 stops rotating and the tail wing stops at the maximum position.

[0134] Considering the time delay of the automobile control system and the inertia of the entire transmission system, when the trigger rod 403 triggers the switch part 50, the electric tail wing drive device will not stop immediately, so the drive rod 405 will continue to rotate. At this time, the trigger rod 403 and the drive rod 405 will separate, thereby preventing the switch part 50 from being crushed by the trigger rod 403.

[0135] When the electric tail driving device moves in the reverse direction, under the action of the first hook 4041 and the second hook 4042 of the limit spring, the trigger rod 403 and the driving rod 405 return to the initial position, thereby being able to accurately indicate the position of the electric tail driving device.

[0136] According to an embodiment of the present disclosure, an electric rear wing system for a vehicle includes: an electric rear wing; and an electric rear wing driving device according to any one of the above embodiments, wherein the electric rear wing can be driven by the electric rear wing driving device.

[0137] According to one embodiment of the present disclosure, a car comprises: the above-mentioned electric rear wing system for the car; and a car control system, which controls an electric rear wing drive device of the electric rear wing system for the car based on the vehicle speed, so that the electric rear wing drive device drives the electric rear wing.

[0138] The electric tail wing drive device disclosed in the present invention is a core mechanism in the electric tail wing system of an automobile. The electric tail wing drive device disclosed in the present invention is installed on the automobile body, and the output shaft assembly is connected to the tail wing.

[0139] When the rear wing needs to be raised, the electric rear wing drive can raise the rear wing to the required position, thereby effectively improving the aerodynamic performance of the vehicle and enhancing the vehicle's handling.

[0140] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0141] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0142] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. An electric tail wing drive device, characterized in that: include: A motor unit capable of outputting a rotational motion around a first axial direction, the motor unit comprising a first flexible sleeve and a second flexible sleeve; a gear assembly, receiving the rotational motion around the first axial direction output by the motor unit, and converting it into a rotational motion around the second axial direction; an output shaft assembly, receiving a rotational motion of the gear assembly rotating about a second axis and outputting a rotational motion rotating about a first axis, wherein the rotational motion output by the output shaft assembly can drive an electric tail wing; and a switch unit, which can be triggered by the output shaft assembly and output a trigger signal when the output shaft assembly outputs a predetermined amount of rotational motion, and based on the trigger signal output by the switch unit, the motor unit can be controlled to stop outputting the rotational motion; The output shaft assembly further comprises a switch triggering portion, and the output shaft assembly triggers the switch portion through the switch triggering portion; The switch triggering part includes a triggering rod, a driving rod and a limiting part, and the switch triggering part triggers the switch part through the triggering rod; The driving rod is sleeved on the output shaft and fixedly connected to the output shaft, the trigger rod is sleeved on the output shaft, and the limiting portion is sleeved on the driving rod; The limiting part is a limiting spring, and the limiting spring has a first hook and a second hook; the trigger rod has a flat part and a first flange part, the flat part is used to trigger the switch part, and the first flange part is used to hang the first hook; the trigger rod has a through hole part, through which the trigger rod is loosely inserted onto the output shaft, so that the trigger rod can rotate around the output shaft; the driving rod has a second flange part, and the second flange part is used to hang the second hook.

2. The electric tail wing drive device according to claim 1, characterized in that: The motor unit includes a motor and a first worm part. The motor is fixedly connected to the first worm part. The motor unit outputs the rotational motion around the first axial direction through the first worm part.

3. The electric tail wing drive device according to claim 2, characterized in that: The first flexible sleeve and the second flexible sleeve are respectively sleeved on the first end and the second end of the motor.

4. The electric tail wing drive device according to claim 3, characterized in that: The motor unit further includes an elastic coupling disposed between an output shaft of the motor and the first worm portion.

5. The electric tail wing drive device according to claim 4, characterized in that: The motor unit further includes a first bearing portion and a first sleeve portion. The first bearing portion is disposed at one end of the first worm portion adjacent to the elastic coupling, and the first sleeve portion is disposed at the other end of the first worm portion.

6. The electric tail wing drive device according to claim 1, characterized in that: The gear assembly includes a gear portion and a second worm portion, the gear portion is fixedly connected to the second worm portion, the gear portion is used to receive the rotational motion around the first axial direction output by the motor unit, and the second worm portion is used to transmit the rotational motion around the second axial direction to the output shaft assembly.

7. The electric tail wing drive device according to claim 6, characterized in that: The gear assembly includes a second bearing portion and a second sleeve portion, wherein the second bearing portion is disposed at a first end of the gear assembly and adjacent to the gear portion, and the second sleeve portion is disposed at a second end of the gear assembly and adjacent to the second worm portion.

8. The electric tail wing drive device according to claim 3, characterized in that: When the trigger rod of the switch triggering part triggers the switch part, the trigger rod and the driving rod cancel the following state, and the limiting part absorbs the kinetic energy of the driving rod after the trigger rod and the driving rod cancel the following state.

9. The electric tail wing drive device according to claim 1, characterized in that: The trigger rod and the driving rod are clamped by the first hook and the second hook.

10. The electric tail wing driving device according to claim 1, characterized in that: The first flange portion and the second flange portion have the same size along the axial direction of the output shaft, so that when the switch trigger portion is not triggered, the trigger rod and the drive rod can be limited to a certain position by the limit spring without relative movement.

11. The electric tail wing driving device according to claim 1, characterized in that: The first axial direction and the second axial direction are perpendicular to each other.

12. The electric tail wing drive device according to claim 3, characterized in that: The first flexible sleeve and the second flexible sleeve are both rubber sleeves.

13. The electric tail wing driving device according to claim 1, characterized in that: The electric tail wing driving device further comprises a first shell and a second shell, wherein the first shell and the second shell form a receiving space for receiving a motor unit, a gear assembly, an output shaft assembly and a switch portion of the electric tail wing driving device.

14. The electric tail wing drive device according to claim 3, characterized in that: The output shaft assembly includes an output shaft and an output shaft gear. The output shaft gear is sleeved on the output shaft and fixedly connected to the output shaft. The output shaft gear is used to receive the rotational motion of the gear assembly around the second axial direction, and the output shaft outputs the rotational motion around the first axial direction.

15. An electric rear wing system for an automobile, characterized in that: include: Electric rear wing; as well as The electric tail wing drive device according to any one of claims 1 to 14, wherein the electric tail wing can be driven by the electric tail wing drive device.

16. A car, characterized in that: include: The automotive electric rear wing system according to claim 15; as well as A vehicle control system controls an electric tail wing drive device of the vehicle electric tail wing system based on the vehicle speed, so that the electric tail wing drive device drives the electric tail wing.

Images