CN216185556U

CN216185556U - Vehicle tail

Info

Publication number: CN216185556U
Application number: CN202122212224.7U
Authority: CN
Inventors: 时浩; 傅洁瑜; 刘帅; 张琳
Original assignee: SAIC Motor Corp Ltd
Current assignee: SAIC Motor Corp Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-05
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a vehicle tail fin, which comprises a tail fin assembly, a driving mechanism, a self-locking structure and two lifting mechanisms, wherein the tail fin assembly comprises a tail fin body and a tail fin body; the tail wing assembly comprises a tail wing body, two lifting mechanisms are arranged at two ends of the tail wing body, and one end of each lifting mechanism is fixedly connected with the tail wing body; the other end of each lifting mechanism is fixedly connected with a trunk lid body of the vehicle; the driving mechanism comprises an output shaft, and two ends of the output shaft are respectively in transmission connection with the two lifting mechanisms; when the self-locking structure is in an unlocking state, the lifting mechanism is driven to move by the rotation of the output shaft, so that the lifting mechanism is switched between a contraction state and a plurality of extension states; when the self-locking structure is in a locking state, the self-locking structure limits the rotation of the output shaft, so that the lifting mechanism can be fixed in a contraction state or any one of a plurality of extension states. By adopting the scheme, the height of the vehicle tail wing can be adjusted according to different working conditions, and the stepless adjustment of the vehicle tail wing is realized.

Description

Vehicle tail

Technical Field

The present invention relates to a vehicle tail.

Background

At present, an active lifting tail wing is basically configured on a luxury vehicle type, and the lifting height and the lifting angle of the tail wing are controlled through a motor and a connecting rod mechanism according to the input of different external working conditions, so that the requirements of wind resistance and lift force are balanced. When the automobile runs at low speed, the wind resistance needs to be low, and the tail wing keeps the initial position unchanged, namely the minimum wind resistance state is achieved; when the vehicle reaches a higher speed, in order to ensure the driving stability of the vehicle, the tail wing rises to a certain position, and the downward pressure of the whole vehicle is increased.

The existing tail wing of the vehicle has the defects that the tail wing can only realize single-stage adjustment and cannot be adjusted in multiple stages, namely, the tail wing of the vehicle can only be lifted to a fixed position, the adjustment flexibility is low, and the working condition capable of coping with is simple.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the multi-stage adjustment of the tail wing of a vehicle cannot be realized in the prior art.

In order to solve the technical problem, the embodiment of the utility model discloses a vehicle empennage which comprises an empennage assembly, a driving mechanism, a self-locking structure and two lifting mechanisms.

The tail wing assembly comprises a tail wing body, the two lifting mechanisms are arranged at two ends of the tail wing body, and one end of each lifting mechanism is fixedly connected with the tail wing body; the other end of each lifting mechanism is fixedly connected with a trunk lid body of the vehicle;

the driving mechanism comprises an output shaft, and two ends of the output shaft are respectively in transmission connection with the two lifting mechanisms;

when the self-locking structure is in an unlocking state, the output shaft rotates to drive the lifting mechanism to move, so that the lifting mechanism is switched between a contraction state and a plurality of extension states;

when the self-locking structure is in a locking state, the self-locking structure limits the rotation of the output shaft, so that the lifting mechanism can be fixed in the contraction state or any one of a plurality of expansion states;

wherein the content of the first and second substances,

when the lifting mechanism is in the contraction state, the empennage body covers a trunk cover of the vehicle;

when the lifting mechanism is in any one of the extension states, the tail wing body is in an open state relative to a trunk lid of the vehicle.

By adopting the technical scheme, the height of the vehicle tail wing can be adjusted according to different working conditions, and stepless adjustment of the vehicle tail wing is realized.

The self-locking structure adopts a worm gear mechanism, the worm gear mechanism comprises a worm and a worm wheel which are meshed with each other and in transmission connection, and the worm wheel is sleeved outside the output shaft and is fixedly connected with the output shaft; the worm and gear mechanism has a reverse self-locking function, so that the worm can drive the worm gear to rotate, and the worm gear is limited to drive the worm to rotate.

By adopting the technical scheme, only when the worm rotates actively, the worm wheel can be driven to rotate, so that the output shaft rotates to realize the adjustment of the position of the empennage body; the worm wheel can not drive the worm to rotate, namely, the worm wheel can not rotate no matter the tail wing body is subjected to downward gravity or external force or upward external force, so that the self-locking structure can realize the fixation of the lifting mechanism in a contraction state or any extension state, and the fixation of the tail wing body is realized.

The driving mechanism comprises the worm gear mechanism.

By adopting the technical scheme, the driving mechanism comprises the worm and gear structure, so that a self-locking structure is not required to be additionally arranged, the cost can be reduced, the compactness of the structure is increased, and the miniaturization is favorably realized.

Each lifting mechanism comprises a lower mounting seat, a driving connecting rod part, a supporting connecting rod part, an upper mounting seat and a switching bracket;

the lower mounting seat is fixedly connected to a trunk cover of a vehicle, and the upper mounting seat is fixedly connected with the adapter bracket; the switching bracket is fixedly connected with the empennage body;

the driving connecting rod part comprises a first connecting rod and a second connecting rod;

one end of the first connecting rod is fixedly connected with the output shaft, and the other end of the first connecting rod is rotatably connected with one end of the second connecting rod through a first connecting shaft; the other end of the second connecting rod is rotatably connected with the upper mounting seat through a second connecting shaft;

the support connecting rod part comprises two support rods;

one end of one of the support rods is rotatably connected with the lower mounting seat through a third connecting shaft, and the other end of the support rod is rotatably connected with the upper mounting seat through a fourth connecting shaft;

one end of the other supporting rod is rotatably connected with the lower mounting seat through a fifth connecting shaft, and the other end of the supporting rod is rotatably connected with the upper mounting seat through a sixth connecting shaft; the two support rods are arranged in a non-parallel state;

the third connecting shaft and the fifth connecting shaft are positioned on one side of a virtual line, and the fourth connecting shaft and the sixth connecting shaft are positioned on the other side of the virtual line; the virtual line is located in a vertical direction.

By adopting the technical scheme, the output shaft drives the first connecting rod to rotate, the first connecting rod drives the second connecting rod to rotate, the second connecting rod drives the upper mounting seat to rotate, and the upper mounting seat drives the two supporting rods to rotate, so that the ascending or descending of the empennage body is realized.

The other end of the second connecting rod is provided with a limiting pin;

when the lifting mechanism is in the maximum extension state, the limiting pin is abutted to the lower end of the upper mounting seat.

By adopting the technical scheme, when the lifting mechanism is in the maximum extension state, the limiting pin is abutted against the lower end of the upper mounting seat, and because when the lifting mechanism is in the maximum extension state, the tail wing body is in the highest position relative to the trunk lid, the air downforce is very large, if the limiting pin is not arranged at the position, the air downforce acts on the tail wing body and is transmitted to the output shaft along the driving connecting rod part of the lifting mechanism, and the output shaft acts on the worm wheel, so that the friction force is generated between the worm wheel and the worm, and the abrasion of the worm wheel and the worm is caused; therefore, the arrangement of the limiting pin can reduce the abrasion of the worm gear.

And the lower mounting seat is provided with a buffer block, and when the lifting mechanism is in the contraction state, the buffer block is arranged at the contact position of the lower mounting seat and the driving connecting rod part or the supporting connecting rod part.

By adopting the technical scheme, when the lifting mechanism is switched from the extension state to the contraction state, the abrasion and the noise caused by the contact between the driving connecting rod part or the supporting connecting rod part and the lower mounting seat can be reduced.

The tail wing assembly further comprises a shielding assembly, the shielding assembly comprises a shielding plate body, and the shielding plate body covers the trunk cover and is fixedly connected with the trunk cover;

accommodating parts are arranged at the positions, corresponding to the lifting mechanism, of the two sides of the lower surface of the shielding plate body, and each lower mounting seat is fixedly connected with the bottom surface of the corresponding accommodating part;

two ends of the output shaft respectively penetrate through the corresponding mounting holes on the side surface of the accommodating part and are fixedly connected with the corresponding first connecting rods;

a cavity is formed inside the accommodating part;

when the lifting mechanism is in the contraction state, at least part of the lifting mechanism is arranged in the cavity, and the tail wing body covers the shielding plate body;

when the lifting mechanism is in any one of the extension states, the tail wing body is in an opening state relative to the shielding plate body.

By adopting the technical scheme, when the lifting mechanism is in a contraction state, the lifting mechanism can be arranged in the cavity of the accommodating part; the tail wing body can cover the shielding plate body, the output shaft is positioned below the shielding plate body, the driving mechanism can be shielded by the shielding plate, and the risk that the driving mechanism is damaged due to exposure to the outside or rain erosion or other weather conditions is reduced; and simultaneously, the tail wing of the whole vehicle is more attractive.

The vehicle tail further comprises a drainage mechanism; the drainage mechanism comprises a drainage filter screen, an adapter, a hose and a drainage head;

a drain filter screen is mounted on the bottom surface of the accommodating part, so that water in the accommodating part is drained through the drain filter screen;

the outside of portion that holds with install on the position that the drainage filter screen corresponds the adapter, the one end of hose with the adapter is connected and is communicate, the other end with drainage head is connected and communicates.

By adopting the technical scheme, when the vehicle tail wing meets rainwater or washes a vehicle, water entering the accommodating part can be discharged in time, and the large particles entering the accommodating part are prevented from blocking the hose by arranging the drainage filter screen, so that accumulated water cannot be discharged in time.

The lower surface of the empennage body is provided with a plurality of buffer blocks at least at two ends; and a tolerance regulator is arranged at the position where the empennage body is connected with the switching bracket.

By adopting the technical scheme, when the tail wing body covers the shielding plate, the noise and abrasion generated by the contact of the tail wing body and the shielding plate can be reduced; meanwhile, the arrangement of the tolerance regulator can improve the surface difference and the gap generated when the empennage body covers the trunk cover; the uniformity of the heights of the two ends of the empennage body is adjusted.

The tail wing assembly further comprises a breathing lamp module, the tail wing body comprises a tail wing upper body and a tail wing lower body, and the tail wing upper body is fixedly connected with the tail wing lower body; the lower tail wing body is fixedly connected with the transfer support;

the vehicle tail further includes a controller;

the breathing lamp module comprises a breathing lamp which is fixedly connected to the upper surface of the empennage upper body; a vehicle body controller of the vehicle sends a signal of the electric quantity or the oil quantity of the whole vehicle to the controller;

when the electric quantity or the oil quantity of the vehicle is smaller than a first preset value, the controller receives a first signal sent by the vehicle body controller and controls the breathing lamp to be in a first display state according to the first signal;

when the electric quantity or the oil quantity of the vehicle is greater than or equal to the first preset value and is less than or equal to a second preset value, the controller receives a second signal sent by the vehicle body controller and controls the breathing lamp to be in a second display state according to the second signal;

when the electric quantity or the oil quantity of the vehicle is larger than the second preset value, the controller receives a third signal sent by the vehicle body controller, and the controller controls the breathing lamp to be in a third display state; wherein the first preset value is smaller than the second preset value;

when the vehicle is charging or refueling, the controller receives a fourth signal sent by the vehicle body controller, and the controller controls the breathing lamp to be in a fourth display state.

By adopting the technical scheme, the breathing lamp can display different states and inform the owner of the vehicle in time, and when the electric quantity or the oil quantity of the vehicle is low, the vehicle can be supplemented in time.

Drawings

Fig. 1 is a schematic structural view of a rear wing of a vehicle in embodiment 1 of the utility model;

fig. 2 is a schematic structural view of a drive mechanism in a tail wing of a vehicle in embodiment 1 of the utility model;

fig. 3 is a schematic structural view of the connection of an output shaft in a tail wing of a vehicle to a lifting mechanism via an extension shaft according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a vehicle rear wing in which a lifting mechanism is in a compressed state as viewed from one direction in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of the vehicle rear wing of embodiment 1 of the present invention in which the lift mechanism is in a compressed state as viewed from another direction;

fig. 6 is a schematic structural view of the rear wing of the vehicle in which the elevating mechanism is in an extended state as viewed from another direction in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a shield plate body in a tail wing of a vehicle in embodiment 1 of the utility model;

FIG. 8 is a schematic structural view of a shutter assembly and a drain mechanism in a rear wing of a vehicle according to embodiment 1 of the present invention;

fig. 9 is a schematic structural view of an upper tail body and a breathing lamp module in a tail of a vehicle according to embodiment 1 of the present invention;

fig. 10 is a schematic structural view of an under-tail body in a rear wing of a vehicle in embodiment 1 of the utility model;

fig. 11 is an electric control schematic diagram in a tail wing of a vehicle in embodiment 1 of the present invention.

Description of reference numerals:

1. a tail assembly; 11. an empennage upper body; 12. a lower body of the tail; 13. a first buffer block; 14. a tolerance regulator; 15. a breathing light module;

2. a drive mechanism; 21. a motor; 22. a first reduction gear box; 23. a secondary reduction gear box; 231. a worm gear; 232. A worm; 24. an output shaft; 25. an extension shaft; 26. a connecting sleeve; 27. lubricating the sleeve;

3. a lifting mechanism; 31. an upper mounting seat; 32. a lower mounting seat; 33. a first link; 331. a first connecting shaft; 34. A second link; 341. a second connecting shaft; 35. a first support bar; 351. a third connecting shaft; 352. a fourth connecting shaft; 36. a second support bar; 361. a fifth connecting shaft; 362. a sixth connecting shaft; 363. a virtual line; 37. a transfer bracket; 38. a second buffer block; 39. a spacing pin;

4. a shutter assembly; 41. a shield plate body; 42. a shield mounting plate; 43. an accommodating portion; 431. sinking a platform;

5. a drainage mechanism; 51. a drainage filter screen; 52. an adapter; 53. a hose; 54. a drainage head;

6. a controller; 61. pin Pin No. 1; 62. pin Pin No. 2; 63. pin Pin No. 3.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the utility model will be described in conjunction with the preferred embodiments, it is not intended that the features of the utility model be limited to these embodiments. On the contrary, the intention of the novel description to be incorporated into the embodiments is to cover alternatives or modifications which may be extended in accordance with the appended claims. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The utility model may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are only used for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

In order to solve the technical problem, the utility model provides a vehicle empennage, which is shown in a figure 1 and comprises an empennage assembly 1, a driving mechanism 2, a self-locking structure, two lifting mechanisms 3 and a controller.

The tail wing assembly 1 comprises a tail wing body, two lifting mechanisms 3 are arranged at two ends of the tail wing body, and one end of each lifting mechanism 3 is fixedly connected with the tail wing body; the other end of each lifting mechanism 3 is fixedly connected with the trunk lid body of the vehicle, so that the lifting of the empennage body is realized through the lifting mechanisms 3.

Referring to fig. 2-3, the driving mechanism 2 includes an output shaft 24, and both ends of the output shaft 24 are respectively connected to the two lifting mechanisms 3 in a transmission manner.

Further, the driving mechanism 2 further includes a motor 21, a first-stage reduction gear box 22, a second-stage reduction gear box 23, and two extension shafts 25. In this embodiment, the driving mechanism 2 further includes an upper housing and a lower housing, the upper housing and the lower housing enclose a cavity, and the motor 21, the first-stage reduction gear box 22, the second-stage reduction gear box 23, and the PCB of the controller are disposed in the cavity.

The PCB on the controller is mainly used to connect with a vehicle Body Controller (BCM), and control the rotation and stop of the motor 21 by recognizing a Lin (local interconnect network) signal of the entire vehicle, and simultaneously, the controller plays roles of overload protection, fault feedback and the like on the entire system, for example, when the motor 21 in the tail wing of the vehicle fails, the motor 21 can be timely fed back to the vehicle body controller, so that the vehicle body controller can send an instruction to the controller to stop the rotation of the motor 21 or other appropriate instructions.

Referring to fig. 11, the controller 6 (ARSC: active front spoilercontroller) is connected with a car Body Controller (BCM) through a wiring harness and a connector, the connector adopts 3 Pin pins, the Pin 1 61 is connected with a normal electric KL30 of the whole car and is responsible for power supply, the Pin 2 is a Lin signal line and is responsible for Lin signal exchange (including a car speed, a driving mode, a power supply mode, road information, a tail wing rotation angle signal, an on-off color and a brightness signal of an LED breathing lamp, an overload protection signal and the like) with the BCM, and the Pin 3 is a ground wire.

The controller 6(ARSC) is connected with the motor 21 through 5 paths, wherein ARSMot _ DRV + and ARSMot _ DRV-are loads of the motor 21 of 2 paths and are responsible for realizing the forward and reverse rotation of the motor 21. ARSMOTHallSnsr _ PWR is a built-in Hall sensor power supply enabling circuit of the motor 21, and ARSMOTHallSnsr _ SIG1 and ARSMOTHallSnsr _ SIG2 are 2 Hall sensor signal circuits and are responsible for identifying the real-time position of the motor 21, and further calculating signals such as steering, rotating speed and reset position.

Wherein, the first-stage reduction gear box 22 of the driving mechanism 2 is in transmission connection with the motor 21; the secondary reduction gear box 23 is in transmission connection with the primary reduction gear box 22; the main function of the motor 21 is to provide the initial power for the operation of the entire tail of the vehicle. The primary reduction gear box 22 and the secondary reduction gear box 23 mainly play the roles of reducing speed and increasing torque, wherein the primary reduction gear box 22 can adopt a planetary gear; the drive mechanism 2 comprises a worm gear mechanism. In the present embodiment, the two-stage reduction gear box 23 employs a combination of the worm wheel 231 and the worm 232.

The output shaft 24 penetrates through the central hole of the worm wheel 231 and is fixedly connected with the worm wheel 231, and one ends of the two extension shafts 25 are respectively and fixedly connected with the two ends of the output shaft 24; the other ends of the two extension shafts 25 are respectively in transmission connection with the corresponding lifting mechanisms 3.

In this embodiment, two extension shafts 25 are respectively fixed with an output shaft 24 through a connecting sleeve 26, wherein the portions of the extension shafts 25 and the output shaft 24 respectively connected with the connecting sleeve 26 are respectively provided with a spline, the inner wall surface of the connecting sleeve 26 is also provided with a spline matched with the extension shafts 25 and the output shaft 24, in the assembling process, the extension shafts 25 and the output shaft 24 are aligned and connected with the connecting sleeve 26 through the splines, and then the connecting position is tightened through a clamp to realize the firm connection between the output shaft 24 and the extension shafts 25. The connection mode of the spline can ensure the coaxiality of the left extension rod and the right extension rod of the output shaft 24, thereby ensuring the symmetry degree of the empennage body in lifting.

In some alternative embodiments, the two-stage reduction gear may also be a cylindrical gear. If the two-stage reduction gear box 23 is a cylindrical gear, it can be realized by setting a larger transmission ratio i (i ═ Z2/Z1, where i is the transmission ratio, Z1 is the driving gear, and Z2 is the driven gear). When the tail wing rises, the driving gear drives the driven gear (the pinion drives the big gear and the labor-saving lever), so that the rotating speed of the output shaft 24 is reduced to a proper range, and the torque is amplified to drive the lifting mechanism 3 to realize the upward rising or downward falling of the tail wing body. When the first-stage hovering position of the empennage body is reached, the motor 21 stops moving, the air downforce is reversely transmitted to the second-stage reduction gear box 23 through the output shaft 24, at the moment, the original driven gear drives the driving gear (the large gear drives the small gear, and the lever is labor-consuming), the damping of the superposition system can generate large moment to resist the air downforce, and the hovering at the first-stage position is achieved. The hovering principle of the second, third and other multi-stage positions is the same, where different hovering positions correspond to different extending states of the lifting mechanism 3.

Referring to fig. 4 to 6, each of the elevating mechanisms 3 includes a lower mount 32, a driving link part, a supporting link part, an upper mount 31, and an adaptor bracket 37.

Wherein, the lower mounting seat 32 is fixedly connected to the trunk lid of the vehicle, and the upper mounting seat 31 is fixedly connected with the switching bracket 37; the switching bracket 37 is fixedly connected with the empennage body; further, a buffer block is disposed on the lower mounting seat 32, and in this embodiment, the buffer block is a second buffer block 38; when the lifting mechanism 3 is in the contracted state, a second buffer block 38 is provided at a position where the lower mount 32 contacts the driving link portion or the supporting link portion. When the lifting mechanism 3 is switched from the extended state to the retracted state, abrasion and noise generated by contact between the driving link portion or the supporting link portion and the lower mount 32 can be reduced.

The driving link portion includes a first link 33 and a second link 34; one end of the first link 33 is fixedly connected with the output shaft 24, in this embodiment, the output shaft 24 passes through the lower mounting seat 32 through the extension shafts 25 at the two ends and then is fixedly connected with the first link 33; further, the extension shaft 25 can pass through the lower mounting seat 32 provided with the lubricating sleeve 27, so that the loss of power transmitted from the output shaft 24 to the extension shaft 25 can be reduced, and the resistance of the extension shaft 25 in rotation can be reduced; the other end of the first link 33 is rotatably connected to one end of the second link 34 through a first connecting shaft 331; the other end of the second link 34 is rotatably connected to the upper mount 31 via a second connecting shaft 341.

In this embodiment, the upper mounting seat 31 and the lower mounting seat 32 drive the second connecting rod 34 to rotate through the first connecting rod 33, so that the second connecting rod 34 can rotate and swing, the height and the angle of the upper mounting seat 31 can be adjusted, and the height and the angle of the tail body can be adjusted according to actual requirements.

Further, the other end of the second link 34 is provided with a stopper pin 39; when the lifting mechanism 3 is in the maximum extension state, the stopper pin 39 abuts against the lower end of the upper mount 31. When the lifting mechanism 3 is in the maximum extension state, the limit pin 39 abuts against the lower end of the upper mounting seat 31, because when the lifting mechanism 3 is in the maximum extension state, the empennage body is in the highest position relative to the trunk lid, the air downward pressure is very large, if the limit pin 39 is not arranged, the air downward pressure acts on the empennage body and is transmitted to the output shaft 24 along the driving connecting rod part of the lifting mechanism 3, the output shaft 24 acts on the worm wheel 231, so that friction force is generated between the worm wheel 231 and the worm 232, and the worm wheel and worm mechanism is abraded; therefore, the provision of the stopper pin 39 can reduce the wear generated between the worm wheel 231 and the worm 232.

The support connecting rod part comprises two support rods; one end of one of the support rods (here, the first support rod 35) is rotatably connected to the lower mounting base 32 through a third connecting shaft 351, and the other end is rotatably connected to the upper mounting base 31 through a fourth connecting shaft 352; one end of the other support rod (here, the second support rod 36) is rotatably connected with the lower mounting seat 32 through a fifth connecting shaft 361, and the other end is rotatably connected with the upper mounting seat 31 through a sixth connecting shaft 362; the two support rods are arranged in a non-parallel state.

When the lifting mechanism 3 is in the contracted state, the first link 33, the second link 34, the first support 35, and the second support 36 in this embodiment are closely adjacent to each other, so that the gap between the first link 33, the second link 34, the first support 35, and the second support 36 is reduced, and the miniaturization of the lifting mechanism 3 is achieved.

The third connecting shaft 351 and the fifth connecting shaft 361 are located on one side of a virtual line 363, and the fourth connecting shaft 352 and the sixth connecting shaft 362 are located on the other side of the virtual line 363; the virtual line 363 is located in the vertical direction. In this embodiment, each connecting shaft may be sleeved with a lubricating sleeve 27, so as to reduce the resistance of rotation of each connecting shaft and reduce power loss. When the load is larger, an additional auxiliary connecting rod can be added to increase the integral strength of the connecting rod mechanism, but the connecting shaft still keeps the form.

In the present embodiment, the first link 33 is in direct contact with the lower mount 32, and therefore, a second buffer block 38 is provided at a position where the second link 34 is in direct contact with the lower mount 32. In some alternative embodiments, it is also possible to provide that the first link 33 or the support bar is in direct contact with the lower mount 32, and to provide a second buffer 38 in the area of its contact.

The self-locking structure adopts a worm and gear mechanism, the worm and gear mechanism comprises a worm 232 and a worm wheel 231 which are meshed with each other and in transmission connection, and the worm wheel 231 is sleeved outside the output shaft 24 and is fixedly connected with the output shaft 24; the worm and gear mechanism has a reverse self-locking function, wherein the lead angle of the worm 232 is smaller than the equivalent friction angle between the wheel teeth of the worm wheel 231, so that the worm 232 can drive the worm wheel 231 to rotate, and meanwhile, the worm wheel 231 is limited to drive the worm 232 to rotate. And actuating mechanism 2 includes the worm gear structure to need not additionally to set up self-locking structure, can reduce cost, increase the compactness of structure, be favorable to realizing the miniaturization.

That is, when the worm gear structure is adopted, only when the worm 232 actively rotates, the worm wheel 231 can be driven to rotate, so that the output shaft 24 rotates to realize the position adjustment of the tail wing body; the worm wheel 231 can not drive the worm 232 to rotate, that is, the worm wheel 231 can not rotate no matter the tail body is subjected to downward gravity or external force or upward external force, so that the self-locking structure can realize the fixation of the lifting mechanism 3 in a contraction state or any extension state, thereby realizing the fixation of the tail body.

When the self-locking structure is in the unlocking state, the output shaft 24 rotates to drive the lifting mechanism 3 to move, so that the lifting mechanism 3 is switched between the contraction state and a plurality of extension states.

When the self-locking mechanism is in the locked state, the self-locking mechanism restricts the rotation of the output shaft 24, so that the lifting mechanism 3 can be fixed in the contracted state or any one of a plurality of extended states.

When the lifting mechanism 3 is in a contraction state, the empennage body covers the trunk cover of the vehicle.

When the lifting mechanism 3 is in any extension state, the tail wing body is in an open state relative to the trunk lid of the vehicle.

The lifting mechanism 3 can be fixed at any position between the contraction state and the maximum extension state, and in the embodiment, the maximum extension state corresponds to the state that the tail body is at the highest position; thus, the vehicle tail of the present invention can be adjusted in multiple stages or inorganic.

For example: under a certain speed (low speed, such as 60km/h), the empennage can be lifted at one level (a certain height and angle are lifted, such as 60mm in height and 10 degrees in angle), the pressure under the whole vehicle is increased, and the control feeling of the whole vehicle is improved; at higher vehicle speeds (high speed, for example 130km/h) or during emergency braking, the tail wing is lifted in a secondary mode (lifted again from a primary position by a certain height and angle, for example, the height is 100mm, and the angle is 30 degrees), so that the braking distance is reduced while the pushing-down force of the whole vehicle is further increased, and the braking performance and the driving safety are improved. Therefore, the vehicle owner can set a plurality of adjusting gears according to actual needs, and the adjusting gears correspond to different vehicle speeds, heights and angles.

Further, referring to fig. 7-8, the tail assembly 1 further includes a shielding assembly 4, the shielding assembly 4 includes a shielding plate body 41 and a shielding mounting plate 42, and the shielding plate body 41 covers and is fixedly connected to the trunk lid.

The shield mounting plate 42 is fixedly connected to the lower part of the shield plate body 41; the shielding mounting plate 42 is provided with a plurality of connecting sites for fixedly connecting with the trunk lid and a plurality of connecting sites for connecting with the driving mechanism 2; in this embodiment, the connection points may be provided with bolts for fixing the driving mechanism 2 to the shield mounting plate 42 through the upper case.

The lower surface of the shielding plate body 41 has accommodating portions 43 at positions corresponding to the lifting mechanism 3, and each lower mounting seat 32 is fixedly connected to the bottom surface of the corresponding accommodating portion 43. The accommodating portion 43 is disposed in the trunk of the vehicle after passing through the shield mounting plate 42 and the trunk lid in this order.

Both ends of the output shaft 24 respectively penetrate through the mounting holes on the side surfaces of the corresponding accommodating parts 43 to be fixedly connected with the corresponding first connecting rods 33; in this embodiment, the both ends of output shaft 24 pass the mounting hole and the corresponding first connecting rod 33 fixed connection of the side of corresponding portion 43 of holding through extension axle 25 respectively, wherein be equipped with the seal cover in the mounting hole of the side of portion 43 of holding, make extension axle 25 and seal cover sealing connection, avoid the ponding of portion 43 of holding to flow to output shaft 24 along extension axle 25 and even reach motor 21, make output shaft 24 and other parts take place to damage, simultaneously, the ponding that flows out along extension axle 25 also can flow to other parts of vehicle, influence the use experience of vehicle and feel, bring inconvenience for the car owner.

A cavity is formed inside the accommodating portion 43; when the lifting mechanism 3 is in a contraction state, at least part of the lifting mechanism 3 is arranged in the cavity, and the tail wing body covers the shielding plate body 41; in the present embodiment, a part of the bottom surface of the accommodating portion 43 is provided with a sinking platform 431 protruding downward from the bottom surface; the lower mounting seat 32 is fixedly connected with the sinking platform 431; the sink 431 increases the load-bearing force of the accommodating part 43 so that the lifting mechanism 3 can be stably coupled in the accommodating part 43.

When the elevating mechanism 3 is in any extended state, the tail body is in an open state with respect to the shield plate body 41.

When the lifting mechanism 3 is in a contraction state, the lifting mechanism can be placed in the cavity of the accommodating part 43; the tail wing body can cover the shielding plate body 41, the driving mechanism 2 is positioned below the shielding body, and the output shaft 24 is positioned below the shielding plate body 41, so that the driving mechanism 2 can be shielded by the shielding plate, and the risk that the driving mechanism 2 is damaged due to exposure to the outside, exposure to insolation, rain erosion or other weather conditions is reduced; and simultaneously, the tail wing of the whole vehicle is more attractive.

Further, referring to fig. 7 to 8, the vehicle rear wing further includes a drainage mechanism 5; the drain mechanism 5 includes a drain screen 51, an adapter 52, a hose 53, and a drain head 54.

A drain screen 51 is installed on the bottom surface of the receiving portion 43 such that the water in the receiving portion 43 is discharged through the drain screen 51.

An adapter 52 is attached to a position on the outside of the housing 43 corresponding to the drain strainer 51, and one end of a hose 53 is connected to and communicated with the adapter 52 and the other end is connected to and communicated with a drain head 54. In the present embodiment, by fixing the hose 53 to the vehicle sheet metal, the drain head 54 is guided to the outside of the vehicle; when the vehicle fin meets rainwater or washes the vehicle, the hydroenergy that gets into the portion 43 that holds in time discharges, sets up drainage filter 51 and also makes the large granule of avoiding getting into the portion 43 and blocks up hose 53 for ponding can not in time discharge away.

A plurality of buffer blocks are arranged at the positions of at least two ends of the lower surface of the empennage body; in this embodiment, the buffer block here is the first buffer block 13; a tolerance adjuster 14 is provided at the location where the tail body connects to the adapter bracket 37. When the tail wing body covers the shielding plate, the noise and abrasion generated by the contact of the tail wing body and the shielding plate can be reduced; meanwhile, the arrangement of the tolerance regulator 14 can improve the surface difference and the gap generated when the empennage body covers the trunk cover; when the tail body rises, the consistency of the heights of the two ends of the tail body is adjusted.

The tail assembly 1 further comprises a breathing lamp module 15, as shown in fig. 9-10, the tail body comprises a tail upper body 11 and a tail lower body 12, and the tail upper body 11 and the tail lower body 12 are fixedly connected; wherein, the upper body and the lower body of the empennage can be connected together by gluing, clamping, screwing and the like. The lower tail body 12 is fixedly connected with the adapting bracket 37.

In addition, the breathing lamp module 15 comprises a breathing lamp which is fixedly connected to the upper surface of the empennage upper body 11; the vehicle body controller of the vehicle sends a signal of the electric quantity or the oil quantity of the whole vehicle to the controller 6.

When the electric quantity or the oil quantity of the vehicle is smaller than a first preset value, the controller 6 receives a first signal sent by the vehicle body controller and controls the breathing lamp to be in a first display state according to the first signal.

When the electric quantity or the oil quantity of the vehicle is greater than or equal to a first preset value and is less than or equal to a second preset value, the controller 6 receives a second signal sent by the vehicle body controller and controls the breathing lamp to be in a second display state according to the second signal;

when the electric quantity or the oil quantity of the vehicle is greater than a second preset value, the controller 6 receives a third signal sent by the vehicle body controller, and the controller 6 controls the breathing lamp to be in a third display state; wherein the first preset value is smaller than the second preset value; different states can be displayed through the breathing lamp to inform the owner in time, and when the electric quantity or the oil quantity of the vehicle is low, the state can be supplemented in time.

In this embodiment, the first preset value may be 10% of the maximum electric quantity or oil quantity capacity, the second preset value may be 90%, and the owner may set the first preset value according to actual needs. When the vehicle is charging or refueling, the controller 6 receives a fourth signal sent by the vehicle body controller, and the controller 6 controls the breathing lamp to be in a fourth display state.

In this embodiment, the first display state may be a state in which the breathing lamp displays red; the second display state may be a state in which the breathing lamp displays yellow; the third display state may be a state in which the breathing lamp displays blue; the fourth display state may be a state in which the breathing light display blinks. In addition to the color display difference of the electric light source, each display state may be different for characters, patterns or figures, and the embodiment is not further limited.

In the present embodiment, the breathing lamp is an LED lamp, and referring to fig. 11, the controller 6(ARSC) is connected to the LED breathing lamp module through 4 paths, wherein the ARSLED _ R, ARSLED _ G, ARSLED _ B is responsible for controlling on/off, color conversion, and brightness conversion of the LED lamp, and the ARSLED _ GND is a ground line. The controller 6(ARSC) controls the display of the LED breathing lamp module through the Lin signal sent by the BCM: the system emits red light when the power is low, and reminds a user that the vehicle needs to be charged or refueled; the breathing flicker effect is realized by intermittent on-off during charging; blue light is emitted at high charge or oil levels.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the utility model, taken in conjunction with the specific embodiments thereof, and that no limitation of the utility model is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. A vehicle tail fin is characterized by comprising a tail fin assembly, a driving mechanism, a self-locking structure and two lifting mechanisms;

wherein the content of the first and second substances,

2. The vehicle tail wing according to claim 1, wherein the self-locking structure adopts a worm gear mechanism, the worm gear mechanism comprises a worm and a worm wheel which are meshed with each other and in transmission connection, and the worm wheel is sleeved outside the output shaft and is fixedly connected with the output shaft; the worm and gear mechanism has a reverse self-locking function, so that the worm can drive the worm gear to rotate, and the worm gear is limited to drive the worm to rotate.

3. The vehicle tail of claim 2 wherein the drive mechanism includes the worm gear mechanism.

4. The vehicle rear wing according to any one of claims 1 to 3, characterized in that each of the lifting mechanisms includes a lower mount, a driving link portion, a support link portion, an upper mount, and an adapter bracket;

the support connecting rod part comprises two support rods;

5. The vehicle rear wing as claimed in claim 4, characterized in that the other end of the second link is provided with a limit pin;

6. The vehicle rear wing as claimed in claim 4, wherein a buffer block is provided on the lower mount, and a buffer block is provided at a position where the lower mount contacts the active link portion or the support link portion when the lift mechanism is in the retracted state.

7. The vehicle tail of claim 4 further comprising a shield assembly including a shield body overlying and fixedly attached to the trunk lid;

two ends of the output shaft penetrate through the corresponding mounting holes on the side surface of the accommodating part and are fixedly connected with the corresponding first connecting rods;

a cavity is formed inside the accommodating part;

8. The vehicle tail of claim 7 further comprising a drainage mechanism; the drainage mechanism comprises a drainage filter screen, an adapter, a hose and a drainage head;

9. The vehicle rear wing as claimed in claim 7, characterized in that a plurality of buffer blocks are provided at least at both end portions of the lower surface of the rear wing body; and a tolerance regulator is arranged at the position where the empennage body is connected with the switching bracket.

10. The vehicle tail assembly of claim 4 further comprising a breathing light module, the tail body including an upper tail body and a lower tail body, the upper tail body and the lower tail body being fixedly connected; the lower tail wing body is fixedly connected with the transfer support;

the vehicle tail further includes a controller;