CN214689805U

CN214689805U - Electric tail wing driving device, electric tail wing system and automobile

Info

Publication number: CN214689805U
Application number: CN202120933521.8U
Authority: CN
Inventors: 包友霞
Original assignee: Shanghai Ingin Auto Technology Co ltd
Current assignee: Shanghai Ingin Auto Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-12
Anticipated expiration: 2031-04-30

Abstract

The present disclosure provides an electric tail driving device, including: the motor device can output rotating motion rotating around the first axial direction; the control device is in communication connection with the motor device, and the motor device outputs a rotating action rotating around the first axial direction based on a control signal of the control device; the gear assembly receives the rotating motion which is output by the motor device and rotates around the first axial direction and converts the rotating motion into the rotating motion which rotates around the second axial direction; and the output shaft assembly receives the rotation action of the gear assembly rotating around the second axial direction and outputs the rotation action, and the rotation action output by the output shaft assembly can drive the electric tail wing. The present disclosure also provides an electric tail system of an automobile and an automobile.

Description

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

Technical Field

The disclosure belongs to the technical field of automobile empennages, and particularly relates to an electric empennage driving device, an electric empennage system and an automobile.

Background

Along with the increasingly wide application of automobile lightweight technology, whole car weight is lighter more and more, leads to the car to grab the land fertility inadequately when going at high speed for the maneuverability of whole car descends, can lead to the vehicle out of control and take place the traffic accident when serious.

Therefore, electric empennage systems capable of automatically adjusting positions according to vehicle speeds are increasingly widely used.

The electric empennage system needs to adjust the position of the empennage according to the speed of the vehicle. When the vehicle runs at low speed, the tail wing is retracted, so that the wind resistance is reduced, and the oil consumption is improved; along with the improvement of vehicle speed, the fin progressively rises, improves vehicle aerodynamic performance, promotes controllability and high-speed driving safety.

The electric empennage system in the prior art is complex in structure and poor in reliability.

The present disclosure is further structural design and structural optimization based on the prior patent CN112441146A of the present applicant.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides an electric tail driving device, an electric tail system, and an automobile.

According to an aspect of the present disclosure, there is provided an electric tail drive device including:

a motor device capable of outputting a rotational motion rotating about a first axial direction;

the control device is in communication connection with the motor device, and the motor device outputs a rotating action rotating around a first axial direction based on a control signal of the control device;

the gear assembly receives the rotary motion which is output by the motor device and rotates around the first axial direction and converts the rotary motion into rotary motion which rotates around the second axial direction; and the number of the first and second groups,

and the output shaft assembly receives the rotation action of the gear assembly rotating around the second axial direction and outputs the rotation action, and the rotation action output by the output shaft assembly can drive the electric tail wing.

According to the electric tail driving device of at least one embodiment of the present disclosure, the control device is a control circuit board or a control chip.

According to the electric tail wing driving device of at least one embodiment of the present disclosure, the control device is in communication connection with a vehicle control system to output a control signal to the motor device based on the control signal of the vehicle control system.

The electric tail driving device according to at least one embodiment of the present disclosure further includes a housing assembly, and the motor device and the gear assembly are disposed in an accommodating space formed by the housing assembly.

According to at least one embodiment of the present disclosure, the control device is fixed within the housing assembly.

According to at least one embodiment of the present disclosure, the control device is fixed outside the housing assembly.

According to the electric tail drive device of at least one embodiment of the present disclosure, a holding portion is formed inside the housing assembly, and the control device is held by the holding portion.

According to the electric tail drive device of at least one embodiment of the present disclosure, a holding portion is formed outside the housing assembly, and the control device is held by the holding portion.

According to the electric tail driving device of at least one embodiment of the present disclosure, the housing assembly includes a first housing and a second housing, and a sealing mechanism is provided between the first housing and the second housing.

According to the electric tail driving device of at least one embodiment of the present disclosure, the sealing mechanism is a sealant or a sealing strip.

According to the electric tail driving device of at least one embodiment of the present disclosure, the first casing and the second casing are fixedly connected.

According to the electric tail driving device of at least one embodiment of the present disclosure, the first housing and the second housing are fixedly connected by a screw.

According to the electric tail driving device of at least one embodiment of the present disclosure, the output shaft assembly comprises an output shaft and an output shaft gear, and the output shaft gear is fixedly connected with the output shaft in a mechanical mode.

According to at least one embodiment of the present disclosure, the electric tail driving device further includes a switch unit that is capable of being triggered by the output shaft assembly and outputting a trigger signal when the output shaft assembly outputs a predetermined amount of rotational motion, and the control device controls the motor device to stop outputting the rotational motion based on the trigger signal output by the switch unit.

According to the electric tail drive device of at least one embodiment of the present disclosure, the housing space of the housing assembly further houses an output shaft assembly and a switch portion of the electric tail drive device.

According to another aspect of the present disclosure, there is provided an electric rear wing system for a vehicle, including:

an electric tail; and the number of the first and second groups,

the electric tail drive device of any one of the above claims, wherein the electric tail is capable of being driven by the electric tail drive device.

According to yet another aspect of the present disclosure, there is provided an automobile including:

the automobile electric empennage system; and the number of the first and second groups,

the automobile control system generates a control signal based on the speed of the automobile and transmits the control signal to the control device of the electric tail wing driving device, so that the electric tail wing driving device drives the electric tail wing.

Drawings

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

Fig. 1 is a schematic structural view of an electric tail drive device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a motor device of an electric tail drive device according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural view of a gear assembly of the electric tail drive apparatus according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural view of an output shaft assembly of the electric tail drive apparatus according to an embodiment of the present disclosure.

Fig. 5 is a schematic configuration diagram of a switch trigger portion of an electric tail drive device according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural view of another perspective of the switch activating portion of the electric tail driving device according to the embodiment of the present disclosure.

Fig. 7 is a partial schematic view of the electric tail drive device according to an embodiment of the present disclosure in a first state.

Fig. 8 is a partial schematic view of the electric tail drive device according to an embodiment of the present disclosure in a second state.

Fig. 9 is one of the schematic structural views of an electric tail drive assembly according to an embodiment of the present disclosure.

Fig. 10 is a second schematic structural view of an electric tail drive assembly according to an embodiment of the present disclosure.

Description of the reference numerals

10 first casing

20 electric machine device

30 Gear Assembly

40 output shaft assembly

50 switch part

60 second housing

70 control device

100 electric tail driving device

201 electric machine

202 first flexible sleeve

203 second flexible sleeve

204 elastic coupling

205 first worm portion

206 first bearing portion

207 first sleeve portion

301 second bearing part

302 gear part

303 second worm part

304 second shaft sleeve part

401 output shaft

402 output shaft gear

403 triggering lever

404 limiting part

405 drive rod

4031 first flanging part

4032 plane part

4033 through hole part

4041A first hook

4042 second hook

4051 second flanging part.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. 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 figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

The electric tail driving apparatus of the present disclosure will be described in detail with reference to fig. 1 to 10.

As shown in fig. 1 to 10, an electric tail drive device 100 of one embodiment of the present disclosure includes: a motor device 20, the motor device 20 being capable of outputting a rotational motion rotating about a first axis; a control device 70, wherein the control device 70 is in communication connection with the motor device 20, and the motor device 20 outputs a rotation motion rotating around a first axial direction based on a control signal of the control device 70; the gear assembly 30 receives the rotary motion which is output by the motor device 20 and rotates around the first axial direction, and converts the rotary motion into rotary motion which rotates around the second axial direction; and an output shaft assembly 40, wherein the output shaft assembly 40 receives the rotation motion of the gear assembly 30 rotating around the second axial direction and outputs the rotation motion, and the rotation motion output by the output shaft assembly 40 can drive the electric tail. The rotation motion output by the output shaft assembly 40 may be a rotation motion rotating around a first axial direction, or a rotation motion rotating around an axial direction forming a predetermined angle with the first axial direction.

The electric tail driving device 100 of the present disclosure transfers the motion of the motor to the tail through the motor device 20, the gear assembly 30 and the output shaft assembly 40, so that the tail can be automatically lifted to a desired position according to the requirement of the whole vehicle, thereby effectively improving the control performance of the whole vehicle.

With the electric tail drive device 100 of the above embodiment, the control device 70 may be a control circuit board or a control chip.

The control circuit board may be an FPGA circuit board, and the control chip may be an integrated circuit chip that solidifies physical logic, and the present disclosure provides reliability of the electric tail driving device 100 by integrating a control unit (ECU), i.e., an electronic control unit, on the electric tail driving device 100 or being provided inside the electric tail driving device 100.

With the electric tail drive device 100 of each of the above embodiments, it is preferable that the control device 70 is connected in communication with a vehicle control system, and the control device 70 outputs a control signal to the motor device 20 based on the control signal of the vehicle control system.

As shown in fig. 1, with respect to the electric tail driving device 100 of each of the above embodiments, the electric tail driving device further includes a housing assembly, and the motor device 20 and the gear assembly 30 are disposed in the accommodating space formed by the housing assembly.

With the electric tail drive device 100 of the above embodiment, it is preferable that the control device 70 is fixed within the housing assembly.

Fig. 1 shows a schematic structural view of a control device 70 of one embodiment of the present disclosure disposed within a housing assembly.

According to another embodiment of the present disclosure, the control device 70 of the electric tail drive 100 may be fixed outside the housing assembly.

With the electric tail drive device 100 of each of the above embodiments, it is preferable that a holding portion is formed inside the housing assembly, and the control device 70 is held by the holding portion.

The holding portion may be a holding structure extending from an inner wall of the housing assembly, or may be a receiving groove formed on the inner wall of the housing assembly, and the disclosure does not specifically limit the specific structure of the holding portion as long as the control device 70 can be fixedly held.

According to another embodiment of the present disclosure, the exterior of the housing assembly of the electric tail drive device 100 forms a holding portion, and the control device 70 is held by the holding portion.

The holding portion may be a holding structure extending from an outer wall of the housing assembly, or may be a receiving groove formed in the outer wall of the housing assembly.

As shown in fig. 1, according to a preferred embodiment of the present disclosure, the housing assembly of the electric tail driving device 100 includes a first housing 10 and a second housing 60, and a sealing mechanism is provided between the first housing 10 and the second housing 60. The sealing mechanism is not shown in fig. 1.

Through the setting of sealing mechanism, can play waterproof effect completely or partly.

Wherein, the sealing mechanism can be a sealing glue or a sealing strip.

With the electric tail drive device 100 of the above embodiment, the first casing 10 and the second casing 60 are fixedly connected.

Preferably, the first housing 10 and the second housing 60 are fixedly connected by screws.

With the electric tail drive device 100 of each of the above embodiments, as shown in fig. 4, the output shaft assembly 40 includes an output shaft 401 and an output shaft gear 402, and the output shaft gear 402 is mechanically and fixedly connected to the output shaft 401.

According to a preferred embodiment of the present disclosure, the electric tail driving device 100 further includes a switch portion 50, when the output shaft assembly 40 outputs a predetermined amount of rotational motion, the switch portion 50 can be triggered by the output shaft assembly 40 and output a trigger signal, and the control device 70 controls the motor device 20 to stop the output of the rotational motion based on the trigger signal output by the switch portion 50 by the control device 70.

The switching section 50 is shown in fig. 1.

According to the preferred embodiment of the present disclosure, the motor device 20 of the electric tail driving 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 device 20 outputs a rotation motion rotating around a first axial direction through the first worm part 205.

Preferably, the motor device 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 at a first end and a second end of the motor 201.

The first flexible sleeve 202 and the second flexible sleeve 203 are used for blocking vibration of the motor and improving sound quality of the electric empennage driving device.

More preferably, the motor device 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.

The resilient coupling 204 serves to eliminate manufacturing tolerances between the motor output shaft and the worm and to block the transmission of vibrations.

According to a preferred embodiment of the present disclosure, the motor device 20 of the electric tail drive device 100 further includes a first bearing portion 206 and a first bushing portion 207, the first bearing portion 206 is disposed at one end of the first worm part 205 adjacent to the elastic coupling 204, and the first bushing portion 207 is disposed at the other end of the first worm part 205.

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

According to a preferred embodiment of the present disclosure, the gear assembly 30 of the electric tail driving device 100 includes a gear portion 302 and a second worm part 303, the gear portion 302 is fixedly connected to the second worm part 303, the gear portion 302 is used for receiving the rotation motion of the motor device 20 about the first axial rotation, and the second worm part 303 is used for transmitting the rotation motion about the second axial rotation to the output shaft assembly 40.

Preferably, the gear assembly 30 of the electric tail drive device 100 includes a second bearing portion 301 and a second bushing portion 304, 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 bushing portion 304 is disposed at a second end of the gear assembly 30 and adjacent to the second worm part 303.

The second bearing portion 301 and the second bushing portion 304 can reduce friction force of rotation of the gear assembly, and improve system transmission efficiency.

According to the preferred embodiment of the present disclosure, the output shaft assembly 40 of the electric tail driving 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 is fixedly connected with the output shaft 401, the output shaft gear 402 is used for receiving the rotation motion of the gear assembly 30 rotating around the second axial direction, and the output shaft 401 outputs the rotation motion rotating around the first axial direction.

By designing the output shaft 401 in the output shaft assembly 40 to be connected to the tail wing, the movement of the electric tail wing driving device 100 is transmitted to the tail wing to push the tail wing to move to a desired position.

According to a preferred embodiment of the present disclosure, the output shaft assembly 40 of the electric tail 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.

Fig. 5 is a schematic configuration diagram of a switch trigger portion of an electric tail drive device according to an embodiment of the present disclosure. Fig. 6 is a schematic structural view of another perspective of the switch activating portion of the electric tail driving device according to the embodiment of the present disclosure.

As shown in fig. 5 and 6, the switch triggering portion of the electric tail driving device 100 preferably includes a triggering rod 403, a driving rod 405, and a limiting portion 404, and the switch triggering portion triggers the switch portion 50 through the triggering rod 403;

the driving rod 405 is sleeved on the output shaft 401 and is fixedly connected with the output shaft 401, the trigger rod 403 is sleeved on the output shaft 401 in an empty mode, and the limiting part 404 is sleeved on the driving rod 405 in an empty mode;

when the switch trigger unit does not trigger the switch unit 50, the stopper 404 keeps the trigger lever 403 and the drive lever 405 in a following state, so that the trigger lever 403 rotates following the drive lever 405.

Further, when the trigger lever 403 of the switch trigger section triggers the switch section 50, the trigger lever 403 and the drive lever 405 are released from the following state, and the stopper section 404 absorbs the kinetic energy of the drive lever 405 after the trigger lever 403 and the drive lever 405 are released from the following state.

According to a preferred embodiment of the present disclosure, the limiting part 404 of the electric tail driving device 100 is a limiting spring having a first hook 4041 and a second hook 4042;

the trigger bar 403 has a planar portion 4032 and a first flange portion 4031, the planar portion 4032 is used for triggering the switch portion 50, and the first flange portion 4031 is used for hanging a first hook 4041;

the trigger bar 403 has a through hole portion 4033, and the trigger bar 403 is idly sleeved on the output shaft 401 through the through hole portion 4033 so that the trigger bar 403 can rotate around the output shaft 401;

the driving rod 405 has a second flanged portion 4051, and the second flanged portion 4051 is used for hanging a second hook 4042.

Preferably, the trigger bar 403 and the driving bar 405 of the electric tail driving device 100 are held by a first hook 4041 and a second hook 4042.

Preferably, the first and

second burring parts

4031 and 4051 of the electric fin driving device 100 have the same size in the axial direction of the output shaft 401, so that the trigger bar 403 and the driving bar 405 can be defined to a certain position by the limit spring without relative movement in a state where the switch trigger part 50 is not triggered, thereby indicating the position of the output shaft 401.

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

In each of the above embodiments, the first flexible sleeve 202 and the second flexible sleeve 203 are preferably rubber sleeves.

As shown in fig. 8 and 10, the electric tail driving device 100 further includes a first housing 10 and a second housing 60, and the first housing 10 and the second housing 60 form an accommodating space to accommodate the motor device 20, the gear assembly 30, the output shaft assembly 40, and the switch section 50 of the electric tail driving device 100.

The operation of the electric tail driving apparatus of the present disclosure will be described in detail with reference to fig. 7 and 8.

Fig. 7 shows the first state of the electric tail driving device of the present disclosure, in which the first worm part 205 of the motor device 20 is engaged with the gear part 302 of the gear assembly 30 to transmit the power of the motor device 20 to the gear assembly 30.

The second worm gear 303 of the gear assembly 30 is engaged with the output shaft gear 402 of the output shaft assembly 40, and the motion of the gear assembly 30 is transmitted to the output shaft assembly 40 and output to the tail wing through the output shaft 401 of the output shaft assembly 40, so as to drive the tail wing to move to a proper position.

Preferably, the second worm gear 303 and the output shaft gear 402 are designed to be self-locking, and the output shaft assembly 40 can only be rotated by the motor device 20, when the motor is powered off, the whole electric tail driving device and the tail will be kept at the position because of the self-locking property of the second worm gear 303 and the output shaft gear 402. Meanwhile, a hall signal sensor is preferably provided in the motor of the motor device 20 to record the number of rotations of the motor, so that the entire electric tail driving device and the tail can be stopped at any desired position.

Preferably, a trigger lever 403, a limit spring and a drive lever 405 are designed on the output shaft assembly 40.

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

Before the trigger bar 403 triggers the switch unit 50, the trigger bar 403 rotates with the driving rod 405 under the action of the limiting spring, and after the trigger bar 403 triggers the switch unit 50, as shown in fig. 8, the motor device 20 is stopped, so that the output shaft 401 stops rotating, and the tail is stopped at the maximum position.

Considering the delay of the control system of the vehicle and the inertia of the whole transmission system, when the trigger lever 403 triggers the switch section 50, the electric tail driving device 100 does not stop immediately, so the driving lever 405 continues to rotate, and the trigger lever 403 and the driving lever 405 separate, thereby preventing the switch section 50 from being crushed by the trigger lever 403.

When the electric tail driving device 100 moves reversely, the trigger bar 403 and the driving bar 405 return to the initial positions again under the action of the first hook 4041 and the second hook 4042 of the limit spring, so that the position of the electric tail driving device 100 can be accurately indicated.

According to an embodiment of this disclosure, the car electric tail system includes: an electric tail; and the electric tail driving device 100 according to any of the above embodiments, the electric tail can be driven by the electric tail driving device 100.

An automobile according to an embodiment of the present disclosure includes: the automobile electric empennage system; and an automobile control system that generates a control signal based on a vehicle speed and transmits the control signal to the control device 70 of the electric tail driving device 100 so that the electric tail driving device 100 drives the electric tail.

The electric tail driving device is a core mechanism in an automobile electric tail system. The electric tail wing driving device is installed on a vehicle body, and an output shaft assembly is connected with a tail wing.

When the tail wing needs to be lifted, the electric tail wing driving device can lift the tail wing to a required position, so that the aerodynamic performance of the whole vehicle is effectively improved, and the controllability of the whole vehicle is improved.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. An electric tail drive device, comprising:

the gear assembly receives the rotary motion which is output by the motor device and rotates around the first axial direction and converts the rotary motion into rotary motion which rotates around the second axial direction; and

2. Electric tail drive according to claim 1, characterized in that the control device is a control circuit board or a control chip.

3. Electric tail drive according to claim 1, characterized in that the control device is connected in communication with a vehicle control system for outputting control signals to the motor device on the basis of control signals of the vehicle control system.

4. The electric tail drive device according to claim 1, further comprising a housing assembly, wherein the motor device and the gear assembly are disposed within a receiving space formed by the housing assembly.

5. Electric tail drive according to claim 4, characterized in that the control device is fixed within the housing assembly.

6. Electric tail drive according to claim 4, characterized in that the control device is fixed outside the housing assembly.

7. The electric tail drive device according to claim 5, wherein a holding portion is formed inside the housing assembly, and the control device is held by the holding portion.

8. The electric tail drive device according to claim 6, wherein a holding portion is formed outside the housing assembly, and the control device is held by the holding portion.

9. The electric tail drive device according to any one of claims 4 to 8, wherein the housing assembly includes a first housing and a second housing, and a sealing mechanism is provided between the first housing and the second housing.

10. An electric tail drive according to claim 9 wherein the sealing mechanism is a sealant or a weatherstrip.

11. Electric tail drive according to claim 9, characterized in that the first housing is fixedly connected to the second housing.

12. The electric tail drive device according to claim 11, wherein the first housing and the second housing are fixedly connected by a screw.

13. An electric tail drive arrangement according to claim 1, wherein the output shaft assembly includes an output shaft and an output shaft gear, the output shaft gear being mechanically fixedly connected to the output shaft.

14. The electric tail drive device according to claim 1, further comprising a switch portion that is capable of being triggered by the output shaft assembly and outputting a trigger signal when the output shaft assembly outputs a predetermined amount of rotational motion, the control device controlling the motor device to stop the output of the rotational motion based on the trigger signal output by the switch portion.

15. The electric tail drive apparatus according to claim 4, wherein the housing assembly accommodating space further accommodates an output shaft assembly and a switch portion of the electric tail drive apparatus.

16. An automotive electric fin system, comprising:

an electric tail; and

an electric tail drive as claimed in any one of claims 1 to 15, the electric tail being drivable by the electric tail drive.

17. An automobile, comprising:

the automotive electric tail system of claim 16; and