Tailfin structure for automobile and automobile
By designing a drive mechanism located above the car's exterior decorative panel and an active tail structure that can be deployed and retracted, the existing tail structure has been solved, and the problems of cumbersome maintenance and high failure rate are achieved, achieving higher stability and maintenance convenience.
Patent Information
- Application Number
- CN202411689149.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-02-14
AI Technical Summary
The existing car tail wing structure needs to be removed during maintenance, resulting in cumbersome maintenance and the complex structure of the transmission mechanism increases the failure rate.
A rear wing structure for a car is designed, wherein the drive mechanism is located above the outer trim panel, in the space defined by the bracket and the rear wing member, the active tail wing is arranged in the left and right direction of the car, and can be expanded and closed to reduce airflow disturbance.
Maintain the integrity of the decorative panel, simplify the maintenance process of the drive mechanism, reduce the failure rate, and improve the stability of the car by optimizing the airflow diversion.
Smart Images
Figure CN119428891A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile technology, and in particular to a tail wing structure for an automobile and the automobile. Background Art
[0002] During the driving process of a car, due to the shape and structural characteristics of the car itself, the car will generate upward lift, and the adhesion between the car and the ground will be reduced. This phenomenon is more prominent when the car is driving at a high speed.
[0003] In order to alleviate the adverse effects of lift on the driving stability of the car as much as possible, a rotatable tail wing is usually set at the rear of the car. The presence of the tail wing reduces the lift generated. The driving member that drives the tail wing to rotate is usually set below the decorative panel of the car's rear door, and the driving member realizes the rotation of the tail wing through a transmission mechanism. Since the tail wing is set below the decorative panel, it is necessary to open an opening on the decorative panel for the transmission mechanism to pass through, and the structure of the transmission mechanism is relatively complex, which increases the failure rate of the transmission mechanism movement. In addition, when the driving member fails, the decorative panel needs to be removed for maintenance, which increases the complexity of maintenance. Summary of the invention
[0004] Based on this, it is necessary to provide a rear wing structure for a car and a car that can maintain the integrity of the decorative panel and facilitate subsequent maintenance.
[0005] The present application provides a tail wing structure for an automobile, comprising a bracket for fixing on an outer decorative panel of a rear door of the automobile; a tail wing member connected to the outer decorative panel, the tail wing member being arranged along the left-right direction of the automobile and being located above the outer decorative panel; an active tail wing mounted on the bracket and arranged along the left-right direction of the automobile, at least part of the active tail wing being located behind the tail wing member; a driving mechanism disposed above the outer decorative panel, at least part of the driving mechanism being located within a space defined by the tail wing member and the bracket, and a power output end of the driving mechanism being drivingly connected to the active tail wing for driving the active tail wing to rotate relative to the bracket, so that the active tail wing has at least the following unfolded state and folded state, in which at least part of the active tail wing is located above the tail wing member and a gap is left between the active tail wing member and the tail wing member; in the unfolded state, the front edge of the active tail wing drops so that the active tail wing and the tail wing member are spatially engaged and have continuity.
[0006] In one embodiment, when the active tail is in the deployed state, the active tail and the tail member are spatially joined and have continuity including that the front edge of the active tail is in contact with the rear edge of the tail member;
[0007] Alternatively, the active rear wing and the rear wing member are spatially joined and continuous, including that a front edge of the active rear wing and a rear edge of the rear wing member overlap in the up-and-down direction of the vehicle.
[0008] In one embodiment, when the active rear wing is in the deployed state, the active rear wing is joined to the rear wing member and has continuity, and a gap is left between the front edge of the active rear wing and the rear edge of the rear wing member in the front-to-rear direction or the up-down direction of the vehicle.
[0009] In one embodiment, the active tail wing is rotatably connected to the bracket, and the position where the active tail wing is rotatably connected to the bracket is defined as a first position, and the active tail wing is rotatably connected to the power output end of the driving mechanism at a second position located in front of the first position;
[0010] And / or, the bracket includes an upper support plate and a transition plate connected in sequence from top to bottom, the upper support plate is arranged along the front and rear direction of the automobile, the transition plate is at least partially arranged vertically, the tail wing member and the active tail wing are both located behind the transition plate, and the active tail wing is located below the upper support plate, the first position is located on the top surface of the active tail wing, and the first position is rotatably connected to the upper support plate.
[0011] In one embodiment, the bracket also includes a lower support plate located below the upper support plate, the lower support plate gradually tilts backward from top to bottom, and the top of the lower support plate is connected to the lower part of the transition plate, and the tail wing member is fixedly connected to the rear of the lower support plate.
[0012] In one embodiment, the driving mechanism includes a push rod motor, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are both located behind the outer casing of the push rod motor, and the position adjacent to the connection between the upper support plate and the transition plate is defined as a third position, the outer casing of the push rod motor is rotationally connected to the third position, and the output shaft of the push rod motor is rotationally connected to the first end of the first connecting rod, the middle position or the position adjacent to the middle of the first connecting rod is rotationally connected to the upper support plate, and the second end of the first connecting rod is rotationally connected to the first end of the second connecting rod, and the second end of the second connecting rod is rotationally connected to the top surface of the active tail wing.
[0013] In one embodiment, at least a portion of the first connecting rod is arched upward, and the first connecting rod includes a front rod portion and a rear rod portion connected in sequence from front to rear, and the connection between the front rod portion and the rear rod portion is defined as a fourth position, and the upper support plate is rotatably connected to an end of the rear rod portion close to the fourth position.
[0014] In one embodiment, the upper support plate and the transition plate jointly form a receiving cavity open to the left or right, the push rod motor is at least partially located in the receiving cavity, the third position is located on the transition plate and is rotatably connected to the front end of the push rod motor; and / or, a receiving cavity with an opening facing downward is provided at the bottom of the upper support plate, and when the active tail wing is in a folded state, the second connecting rod and the first connecting rod are at least partially located in the receiving cavity.
[0015] In one embodiment, the thrust F of the push rod motor satisfies: F=T*2π*η / P, wherein T is the motor torque, P is the lead of the motor, η is the working efficiency of the motor, and the maximum resultant force exerted on the active tail wing in the deployed state at the highest driving speed is defined as F1, and the thrust F and the resultant force F1 satisfy: F>F1.
[0016] In one embodiment, there are two brackets, which are spaced apart along the left-right direction of the vehicle, each bracket corresponds to a group of the driving mechanisms and one of the accommodating chambers, and the openings of the two accommodating chambers are arranged facing each other.
[0017] In one embodiment, the casings of the two push rod motors each include an outer wall plate that exposes the corresponding side openings and is located outside the accommodating cavity, and the two outer wall plates each include an upper wall plate and a lower wall plate that are sequentially connected from top to bottom, and the two upper wall plates each gradually incline toward each other from top to bottom, and the two lower wall plates each gradually incline away from each other from top to bottom.
[0018] In one embodiment, there are two brackets, which are arranged at intervals along the left-right direction of the car, and each bracket corresponds to a group of the driving mechanisms.
[0019] In one of the embodiments, a tail wing structure is disposed on the top surface of the outer decorative panel, and the tail wing structure is the tail wing structure described in any of the above embodiments.
[0020] Compared with the prior art, in the tail wing structure for automobiles provided by the present application, the driving mechanism is located above the outer decorative panel, at this time, the integrity of the outer decorative panel is guaranteed, and the driving mechanism can be repaired without removing the outer decorative panel. The driving mechanism is at least partially located in the space defined by the bracket and the tail wing member. During the driving process of the automobile, after the airflow hits the bracket, it is split into two streams, and most of the two airflows flow from the left and right sides of the bracket, which minimizes the degree of direct collision between the driving mechanism and the airflow, avoids the influence of the driving mechanism on the airflow disturbance, and better exerts the influence of the active tail wing and the tail wing member on the airflow, so that the automobile drives close to the ground, which is conducive to improving the stability of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A three-dimensional diagram of an active tail wing in a tail wing structure according to an embodiment of the present application in a deployed state;
[0023] Figure 2 for Figure 1 A partial enlarged view of the tail structure at A is shown;
[0024] Figure 3 for Figure 1 A partial structural schematic diagram of the tail wing structure is shown;
[0025] Figure 4 for Figure 3 A partial enlarged view of the tail structure at B is shown;
[0026] Figure 5 for Figure 1 A perspective view of the tail wing structure from another angle;
[0027] Figure 6 for Figure 5 A partial enlarged view of the tail structure at C is shown;
[0028] Figure 7 A three-dimensional diagram of an active tail wing in a tail wing structure according to an embodiment of the present application in a folded state;
[0029] Figure 8 for Figure 7 A schematic structural diagram of the support and the driving mechanism is shown.
[0030] 1. Outer decorative panel; 2. Bracket; 21. Upper support plate; 210. Accommodating chamber; 211. Front support foot; 212. Rear support foot; 22. Lower support plate; 221. Support arm; 23. Transition plate; 24. Connecting plate; 25. Third position; 3. Tail wing member; 4. Active tail wing; 401. First position; 402. Second position; 41. Front mounting foot; 42. Rear mounting foot; 43. Mounting hole; 5. Driving mechanism; 51. Push rod motor; 511. Outer wall panel; 5111. Upper wall panel; 5112. Lower wall panel; 52. First connecting rod; 521. Front rod portion; 522. Rear rod portion; 523. Fourth position; 53. Second connecting rod; 6. Accommodating chamber; 61. Opening; 7. Mounting plate; 71. Limiting groove; 711. Top wall; 712. Bottom wall; 8. Connecting shaft; 9. Gap. DETAILED DESCRIPTION
[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.
[0033] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0035] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.
[0036] See also Figures 1 to 8The present application provides a rear wing structure for a car, the rear wing structure is located on the car. The car includes a rear door, the rear door is provided with an outer decorative panel 1, and the rear wing structure is installed on the top surface of the outer decorative panel 1.
[0037] In the following, the left-right direction y is the width direction of the vehicle body, corresponding to the y direction in the coordinate system, the front-back direction x is the length direction of the vehicle body, corresponding to the x direction in the coordinate system, and the up-down direction z is the height direction of the vehicle body, and corresponds to the z direction in the coordinate system.
[0038] like Figure 1 , Figure 3 and Figure 7 As shown, the above-mentioned tail wing structure includes a bracket 2, a tail wing member 3, an active tail wing 4 and a driving mechanism 5. Among them, the bracket 2 is used to be fixed on the outer decorative panel 1 of the rear door of the car. In one embodiment, the tail wing member 3 is a movable tail wing that can rotate relative to the bracket. In another embodiment, the tail wing member 3 is fixed on the outer decorative panel 1. In this embodiment, the tail wing member 3 is fixedly mounted on the bracket 2. Among them, the tail wing member 3 is arranged along the left-right direction y of the car and is located above the outer decorative panel 1.
[0039] like Figures 1 to 3 As shown, the active rear wing 4 is mounted on the bracket 2 and arranged along the left-right direction y of the car, and at least part of the active rear wing 4 is located behind the rear wing member 3. In this embodiment, the top surface of the active rear wing 4 is rotatably connected to the bracket 2, and the position of the rotatable connection is defined as the first position 401. The active rear wing 4 is rotatably connected to the power output end of the driving mechanism 5 at a second position located in front of the first position 401. Then, the active rear wing 4 rotates relative to the rear wing member 3 under the drive of the driving mechanism 5, so that the active rear wing 4 has at least the following unfolded state and folded state. Figure 5 As shown, in the folded state, at least part of the active tail wing 4 is located above the tail wing member 3, and a gap is left between the active tail wing 4 and the tail wing member 3. Figures 1 to 3 As shown, in the unfolded state, the leading edge of the active rear wing 4 drops so that the active rear wing 4 and the rear wing member 3 are spatially joined and have continuity. In one embodiment, the front portion of the active rear wing 4 overlaps the top surface of the rear portion of the rear wing member 3, that is, the active rear wing 4 and the rear wing member 3 are joined and have continuity, including that the front edge of the active rear wing 4 and the rear edge of the rear wing member 3 overlap in the vertical direction of the vehicle. In another embodiment, the front edge of the active rear wing 4 and the rear edge of the rear wing member 3 are butted, that is, the active rear wing 4 and the rear wing member 3 are joined and have continuity, including that the front edge of the active rear wing 4 and the rear edge of the rear wing member 3 are butted.
[0040] It can be understood that when the active rear wing 4 is in the deployed state, when the active rear wing 4 is engaged with the rear wing member 3 and has continuity, the airflow under the rear wing structure flows more smoothly, the airflow flows faster, the pressure under the rear wing structure decreases, and a relatively large pressure difference is formed on the upper and lower sides of the rear wing structure, so that the rear wing is subjected to downward pressure, forcing the car to run close to the ground.
[0041] In this embodiment, if Figure 3 As shown, the active rear wing 4 is connected with the tail wing member 3 and has continuity, and a gap 9 is left between the front edge of the active rear wing 4 and the rear edge of the tail wing member 3 in the front-to-back direction or the up-down direction of the car. For the airflow, it first passes through the tail wing member 3, and a pressure difference is formed on the upper and lower sides of the tail wing member 3, and the tail wing member 3 is subjected to downward pressure. The airflow originally below the tail wing member 3 will maintain the original flow trend and continue to flow to the bottom of the active rear wing 4; while the airflow above the tail wing member 3 will hit the leading edge of the active rear wing 4, thereby being divided into two streams, one of which maintains the original flow trend and continues to flow to the upper side of the active rear wing 4, while the other airflow flows to the bottom of the active rear wing 4 after passing through the gap 9, and merges with the original airflow below the active rear wing 4 and continues to flow toward the rear together. For the active rear wing 4, due to the interference of such an airflow, the flow speed of the airflow below the active rear wing 4 is further increased, and a relatively large pressure difference is formed again on the upper and lower sides of the active rear wing 4, so that the active rear wing 4 is subjected to downward pressure again.
[0042] It is understandable that when the car is driving at high speed or turning, it will encounter air resistance. The driving mechanism 5 drives the active rear wing 4 to rotate, and the angle of the rear wing can be adjusted at this time. The rear wing causes the air resistance to form a downward pressure, that is, the air generates a certain downward pressure on the car, so that the car drives close to the ground, which is conducive to improving the stability of the car.
[0043] In one embodiment, the bracket 2 includes an upper support plate 21 and a transition plate 23 connected in sequence from top to bottom, the transition plate 23 is at least partially arranged vertically, and the lower part of the transition plate 23 is connected to the outer decorative plate 1. The tail wing member 3 and the active tail wing 4 are both located behind the transition plate 23, and the tail wing member 3 is fixedly connected to the transition plate 23. The top surface of the active tail wing 4 is located below the upper support plate 21.
[0044] In another embodiment, Figure 2 and Figure 3As shown, the bracket 2 includes an upper support plate 21, a lower support plate 22 and a transition plate 23 located between the upper support plate 21 and the lower support plate 22. The upper support plate 21 is located above the lower support plate 22. The upper support plate 21 is arranged along the front-rear direction x of the automobile, and the lower support plate 22 gradually tilts backward from top to bottom. The transition plate 23 is arranged vertically. In one embodiment, the upper edge of the transition plate 23 is connected to the front edge of the upper support plate 21, and the lower edge of the transition plate 23 is connected to the upper edge of the lower support plate 22. In another embodiment, the position of the transition plate 23 close to the lower edge is connected to the position of the lower support plate 22 close to the upper edge. In other words, as long as the lower part of the transition plate 23 is connected to the upper part of the lower support plate 22, it will suffice.
[0045] In this embodiment, the tail wing member 3 and the active tail wing 4 are both located behind the transition plate 23. The active tail wing 4 is located below the upper support plate 21. The tail wing member 3 is installed at the rear of the lower support plate 22, that is, it is fixedly connected to the transition plate 23 through the lower support plate 22. Figure 7 As shown, a support arm 221 extending upward is provided at the rear of the lower support plate 22 , the tail wing member 3 is fixed on the top surface of the support arm 221 , and the top surface of the support arm 221 matches the bottom surface of the tail wing member 3 .
[0046] In one embodiment, the lower support plate 22 is connected to the top surface of the outer decorative plate 1. In another embodiment, the bracket 2 further includes a connecting plate 24 for connecting to the top surface of the outer decorative plate 1, and the connecting plate 24 is connected to the lower edge of the lower support plate 22, so the connecting plate 24 is located below the lower support plate 22. The connecting plate 24 is arranged vertically, and the front wall surface of the connecting plate 24 is smoothly connected to the front wall surface of the lower support plate 22.
[0047] The first position 401 is located on the top surface of the active tail wing 4 and is rotatably connected to the bottom of the upper support plate 21. Figure 2 and Figure 4As shown, the bottom of the upper support plate 21 is installed with a front support foot 211 and a rear support foot 212 spaced in sequence from front to rear, and the front support foot 211 and the rear support foot 212 both extend downward. The top surface of the active rear wing 4 is installed with a front mounting foot 41 and a rear mounting foot 42 spaced in sequence from front to rear, and the front mounting foot 41 and the rear mounting foot 42 both extend upward. The rear mounting foot 42 is located at a first position 401, and the front mounting foot 41 is located at a second position 402. In one embodiment, the rear mounting foot 42 and the rear support foot 212 are correspondingly provided with a mounting hole 43 for inserting a mounting shaft therein, and the mounting shaft extends along the left-right direction y of the vehicle body. In another embodiment, one of the rear mounting foot 42 and the rear support foot 212 is provided with a mounting shaft extending along the left-right direction y of the vehicle body, and the other of the rear mounting foot 42 and the rear support foot 212 is provided with a mounting hole for inserting the mounting shaft therein. In this way, the upper support plate 21 is rotatably connected to the active tail wing 4 through the rotatable connection between the rear mounting foot 42 and the rear support foot 212 .
[0048] The driving mechanism 5 is arranged above the outer decorative panel 1. It can be understood that, on the one hand, the integrity of the outer decorative panel 1 is ensured; on the other hand, the driving mechanism 5 is convenient for maintenance, avoiding the tediousness of disassembling the outer decorative panel 1 for maintenance caused by being arranged below the outer decorative panel 1.
[0049] The driving mechanism 5 is at least partially located in the space defined by the tail wing member 3 and the bracket 2. It is understandable that during the driving process of the car, after the airflow hits the bracket 2, it is split into two streams, and most of the two airflows flow from the left and right sides of the bracket 2, which minimizes the degree of direct collision between the driving mechanism 5 and the airflow, and avoids the influence of the driving mechanism 5 on the airflow disturbance. During the driving process of the car, the active tail wing 4 and the tail wing member 3 can better exert their influence on the airflow, so that the car can run close to the ground, which is conducive to improving the stability of the car.
[0050] like Figures 2 to 4 As shown, the driving mechanism 5 includes a push rod motor 51, a first connecting rod 52 and a second connecting rod 53. The first connecting rod 52 and the second connecting rod 53 are both located behind the housing of the push rod motor 51. Since the push rod motor 51 is hidden behind the transition plate 23, the airflow directly hits the transition plate 23 during the driving process of the vehicle, which minimizes the degree of direct impact of the push rod motor 51 on the airflow, and avoids the influence of the push rod motor 51 on the airflow disturbance.
[0051] like Figure 2 and Figure 3As shown, the position adjacent to the connection between the upper support plate 21 and the transition plate 23 is defined as the third position 25, the housing of the push rod motor 51 is rotatably connected to the third position 25, and the output shaft of the push rod motor 51 is rotatably connected to the first end of the first connecting rod 52, the middle position or the position adjacent to the middle of the first connecting rod 52 is rotatably connected to the front support foot 211 of the upper support plate 21, and the second end of the first connecting rod 52 is rotatably connected to the first end of the second connecting rod 53, and the second end of the second connecting rod 53 is rotatably connected to the front mounting foot 41 of the active tail 4. Obviously, a part of the second connecting rod 53 is located behind the first connecting rod 52.
[0052] In one embodiment, the third position 25 is located on the transition plate 23 and is rotatably connected to the front end of the push rod motor 51. In another embodiment, the third position is located on the upper support plate 21 and is rotatably connected to the front end of the push rod motor 51.
[0053] In one embodiment, if Figure 2 and Figure 3 As shown, at least a portion of the first connecting rod 52 is arched upward, and the first connecting rod 52 includes a front rod portion 521 and a rear rod portion 522 connected in sequence from front to rear, and the connection between the front rod portion 521 and the rear rod portion 522 is defined as a fourth position 523, and the upper support plate 21 is rotatably connected to one end of the rear rod portion 522 near the fourth position 523. In another embodiment, the upper support plate 21 is rotatably connected to the fourth position 523.
[0054] In one embodiment, the front rod portion 521 is an arc-shaped rod portion that arches upward, and the rear rod portion 522 is a straight rod portion. In another embodiment, the first connecting rod 52 is an arc-shaped rod as a whole.
[0055] In addition, if Figure 7 and Figure 8 As shown, a accommodating cavity 210 with an opening facing downward is provided at the bottom of the upper support plate 21. When the active tail 4 is in the folded state, the second connecting rod 53 and the first connecting rod 52 are at least partially located in the accommodating cavity 210. In one embodiment, part of the second connecting rod 53 and part of the rear rod portion 522 are located in the accommodating cavity 210. In another embodiment, part of the second connecting rod 53, part of the rear rod portion 522, and part of the front rod portion 521 are all located in the above-mentioned accommodating cavity 210. In addition, in one embodiment, the above-mentioned second connecting rod 53 and the first connecting rod 52 are both located in the accommodating cavity 210. In this way, the upper support plate 21 is prevented from interfering with the movement of the first connecting rod 52 and the second connecting rod 53.
[0056] When the active tail 4 needs to be deployed, the push rod motor 51 works, the push rod motor 51 pushes the first connecting rod 52 backward, and drives the active tail 4 to rotate backward around the installation axis through the second connecting rod 53 until the active tail 4 is deployed. The above-mentioned driving mechanism adopts a structure in which the push rod motor, the first connecting rod and the second connecting rod cooperate, and has a simple structure and a low failure rate.
[0057] The thrust F of the push rod motor 51 satisfies: F=T*2π*η / P, where T is the motor torque, P is the lead of the motor, and η is the working efficiency of the motor. The maximum resultant force to which the active rear wing 4 in the deployed state is subjected at the highest driving speed is defined as F1, and the thrust F and the resultant force F1 satisfy: F>F1. In this way, the torque of the push rod motor 51 can be obtained. For example, at the maximum driving speed of the car of 260km / h, the maximum resultant force to which the active rear wing in the deployed state is subjected is 901N. At this time, the thrust of the push rod motor 51 used must be greater than 901N. The torque of the push rod motor can be obtained from the above formula, so as to better select the push rod motor.
[0058] The upper support plate 21 and the transition plate 23 together form a receiving cavity 6 with an opening 61 facing left or right. The push rod motor 51 is at least partially located in the receiving cavity 6. The existence of the receiving cavity 6 facilitates the receiving of the push rod motor 51.
[0059] In this embodiment, there are two brackets 2, and they are arranged at intervals along the left-right direction y. Each bracket 2 corresponds to a set of driving mechanisms 5 and a receiving chamber 6, and the openings 61 of the two receiving chambers 6 are arranged facing each other. The shells of the two push rod motors 51 each include an outer wall plate 511 that exposes the corresponding side openings 61 and is located outside the receiving chamber 6. The two outer wall plates 511 each include an upper wall plate 5111 and a lower wall plate 5112 that are connected in sequence from top to bottom. The two upper wall plates 5111 are gradually inclined toward each other from top to bottom, and the two lower wall plates 5112 are gradually inclined away from each other from top to bottom.
[0060] It can be understood that during the driving of the automobile, the airflow directly hits the transition plate 23 and is split into two streams. Most of the two airflows flow from the left and right sides of the transition plate 23. The airflow on the side where the outer wall plate 511 is located converges under the guidance of the upper wall plate 5111 and the lower wall plate 5112 and flows toward the first connecting rod 52, and flows along the surface of the first connecting rod 52. The arched front rod portion 521 better guides the airflow, thereby reducing the impact of the push rod motor on the airflow disturbance.
[0061] The above-mentioned tail wing structure also includes two mounting plates 7 arranged at intervals along the left-right direction y of the automobile, and the above-mentioned tail wing component 3 and the active tail wing 4 are both located between the two mounting plates 7. The left and right ends of the tail wing component 3 are respectively inserted into the mounting plates 7 on the corresponding sides, so that the tail wing component 3 and the mounting plates 7 are relatively fixed. A limiting groove 71 for the corresponding end of the active tail wing 4 to be rotated and limited therein is provided on the plate surface of the mounting plate 7 facing the active tail wing 4, and the top wall 711 of the limiting groove 71 matches the top edge of the corresponding end of the active tail wing 4, and the bottom wall 712 of the limiting groove 71 matches the bottom edge of the corresponding end of the active tail wing 4. In this way, when the active tail wing 4 is in the deployed state, as shown in FIG. Figure 1 and Figure 3 As shown, the top edge of the active tail wing 4 abuts against the top wall 711 of the limiting groove 71. Figure 7 As shown, when the active rear wing 4 is in the folded state, the bottom edge of the active rear wing 4 abuts against the bottom wall 712 of the limiting groove 71 .
[0062] In one embodiment, a through hole for the connecting shaft to pass through is provided at the corresponding end of the active tail wing 4 and the mounting plate 7, and the connecting shaft is coaxially arranged with the above-mentioned mounting shaft. In another embodiment, the active tail wing 4 is provided with a connecting shaft 8 coaxially arranged with the mounting shaft, and the mounting plate 7 is provided with a through hole for the connecting shaft 8 to be inserted therein, and the connecting shaft 8 is rotatably matched with the through hole. In one embodiment, the connecting shaft 8 is a fixed pin shaft. In another embodiment, the connecting shaft 8 is a fixed shaft formed on the active tail wing 4.
[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0064] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.
Claims
1. A tail wing structure for an automobile, characterized in that: include: A bracket (2) is used to be fixed on the outer decorative panel (1) of the rear door of the automobile; A tail wing member (3) connected to the outer decorative panel (1), the tail wing member (3) being arranged along the left-right direction (y) of the automobile and being located above the outer decorative panel (1); An active rear wing (4) is mounted on the bracket (2) and arranged along the left-right direction (y) of the automobile, and at least a portion of the active rear wing (4) is located behind the rear wing member (3); A driving mechanism (5) is arranged above the outer decorative panel (1), and at least a portion of the driving mechanism (5) is located in a space defined by the tail wing member (3) and the bracket (2), and a power output end of the driving mechanism (5) is connected to the active tail wing (4) for driving the active tail wing (4) to rotate relative to the bracket (2), so that the active tail wing (4) has at least the following unfolded state and folded state: in the folded state, at least a portion of the active tail wing (4) is located above the tail wing member (3) and a gap is left between the active tail wing (3); in the unfolded state, the front edge of the active tail wing (4) drops so that the active tail wing (4) and the tail wing member (3) are spatially connected and have continuity.
2. The tail wing structure according to claim 1, characterized in that: When the active rear wing (4) is in the unfolded state, the active rear wing (4) is joined to the rear wing member (3) and has continuity, including the front edge of the active rear wing (4) butting against the rear edge of the rear wing member (3); or, the active rear wing (4) is joined to the rear wing member (3) and has continuity, including the front edge of the active rear wing (4) and the rear edge of the rear wing member (3) overlapping in the up and down direction of the vehicle.
3. The tail wing structure according to claim 1, characterized in that: When the active rear wing (4) is in the unfolded state, the active rear wing (4) is joined to the rear wing member (3) and has continuity, and a gap (9) is left between the front edge of the active rear wing (4) and the rear edge of the rear wing member (3) in the front-to-rear direction or the up-down direction of the vehicle.
4. The tail wing structure according to claim 1, characterized in that: The active tail wing (4) is rotationally connected to the bracket (2), and the position where the active tail wing (4) is rotationally connected to the bracket (2) is defined as a first position (401). The active tail wing (4) is rotationally connected to the power output end of the driving mechanism (5) at a second position (402) located in front of the first position (401).
5. The tail wing structure according to claim 4, characterized in that: The bracket (2) comprises an upper support plate (21) and a transition plate (23) connected in sequence from top to bottom, the upper support plate (21) being arranged along the front-rear direction (x) of the automobile, the transition plate (23) being at least partially arranged vertically, the tail wing member (3) and the active tail wing (4) being both located behind the transition plate (23), and the active tail wing (4) being located below the upper support plate (21), the first position (401) being located on the top surface of the active tail wing (4), and the first position (401) being rotatably connected to the upper support plate (21).
6. The tail wing structure according to claim 5, characterized in that: The bracket (2) further comprises a lower support plate (22) located below the upper support plate (21), the lower support plate (22) gradually tilts backward from top to bottom, and the top of the lower support plate (22) is connected to the lower part of the transition plate (23), and the tail wing member (3) is fixedly connected to the rear part of the lower support plate (22); And / or, the driving mechanism (5) includes a push rod motor (51), a first connecting rod (52) and a second connecting rod (53), the first connecting rod (52) and the second connecting rod (53) are both located behind the outer shell of the push rod motor (51), and the position adjacent to the connection between the upper support plate (21) and the transition plate (23) is defined as a third position (25), the outer shell of the push rod motor (51) is rotationally connected to the third position (25), and the output shaft of the push rod motor (51) is rotationally connected to the first end of the first connecting rod (52), the middle position of the first connecting rod (52) or the position adjacent to the middle is rotationally connected to the upper support plate (21), and the second end of the first connecting rod (52) is rotationally connected to the first end of the second connecting rod (53), and the second end of the second connecting rod (53) is rotationally connected to the top surface of the active tail wing (4).
7. The tail wing structure according to claim 6, characterized in that: At least a portion of the first connecting rod (52) is arched upward, and the first connecting rod (52) includes a front rod portion (521) and a rear rod portion (522) connected in sequence from front to rear, and the connection point between the front rod portion (521) and the rear rod portion (522) is defined as a fourth position (523), and the upper support plate (21) is rotatably connected to one end of the rear rod portion (522) close to the fourth position (523).
8. The tail wing structure according to claim 6, characterized in that: The upper support plate (21) and the transition plate (23) together form a receiving chamber (6) with an opening (61) facing left or right, the push rod motor (51) is at least partially located in the receiving chamber (6), and the third position (25) is located on the transition plate (23) and is rotatably connected to the front end of the push rod motor (51); And / or, a accommodating cavity (210) with an opening facing downward is provided at the bottom of the upper support plate (21), and when the active tail wing (4) is in a folded state, the second connecting rod (53) and the first connecting rod (52) are at least partially located in the accommodating cavity (210).
9. The tail wing structure according to claim 6, characterized in that: The thrust F of the push rod motor (51) satisfies: F=T*2π*η / P, wherein T is the motor torque, P is the lead of the motor, and η is the working efficiency of the motor. The maximum resultant force exerted on the active tail wing (4) in the deployed state at the highest driving speed is defined as F1, and the thrust F and the resultant force F1 satisfy: F>F1.
10. The tail wing structure according to claim 8, characterized in that: There are two brackets (2), which are arranged at intervals along the left-right direction (y) of the vehicle. Each bracket (2) corresponds to a group of the driving mechanisms (5) and one accommodating cavity (6), and the openings (61) of the two accommodating cavities (6) are arranged facing each other.
11. The tail wing structure according to claim 10, characterized in that: The outer shells of the two push rod motors (51) each include an outer wall plate (511) that exposes the corresponding side opening (61) and is located outside the accommodating cavity (6); the two outer wall plates (511) each include an upper wall plate (5111) and a lower wall plate (5112) that are sequentially connected from top to bottom; the two upper wall plates (5111) each gradually incline toward each other from top to bottom, and the two lower wall plates (5112) each gradually incline away from each other from top to bottom.
12. The tail wing structure according to any one of claims 1 to 9, characterized in that: There are two brackets (2), which are arranged at intervals along the left-right direction (y) of the car, and each bracket (2) corresponds to a group of driving mechanisms (5).
13. An automobile, comprising an outer decorative panel (1), characterized in that: The top surface of the outer decorative panel (1) is provided with a tail wing structure, and the tail wing structure is the tail wing structure according to any one of claims 1 to 12.