Automobile rear bumper active side wing assembly and automobile

Abstract

An automobile rear bumper active side wing assembly comprises a side wing body, a rear bumper body and a driving device, one end of the side wing body is rotatably arranged on the rear bumper body, and the other end of the side wing body is in transmission connection with the driving device. The side wing bodies can be driven by the driving device to rotate to be unfolded or folded relative to the rear bumper body so as to reduce wind resistance of the tail portion of a vehicle body or enable the wind resistance of the tail portion of the vehicle body to be restored. According to the automobile rear bumper active side wing assembly, control over the wind resistance of the tail of an automobile body is achieved through the side wing body capable of being actively unfolded or folded, the wind resistance of a rear bumper can be controlled and reduced on the premise that the original shape is not changed as much as possible, cost is low, and the shape is attractive.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile rear bumper technical field especially relates to a kind of automobile rear bumper active side wing assembly and automobile. BACKGROUND

[0002] Due to the modeling design demand, the side of part of existing automobile rear bumper is relatively round, leading to the airflow passing through the side of rear bumper cannot quickly separate, and forms larger wind resistance at the tail of vehicle, which is equivalent to that the tail of vehicle has a suction force to drag the vehicle to prevent it from running. On the other hand, the wind resistance of the whole vehicle is closely related to the endurance capability of new energy vehicle. Taking a new energy vehicle with 85 degrees of electricity as an example, the endurance mileage can be increased by 0.7 km for each reduction of 0.001 of the wind resistance coefficient. Therefore, reducing the wind resistance, especially the wind resistance of the side of rear bumper, is one of the important means to improve the endurance. Redesigning the tail shape or the rear bumper shape costs high investment, and also affects the design of the appearance of the vehicle. Therefore, how to reduce the wind resistance of the rear bumper without changing the original shape as much as possible is a big problem to be solved in this technical field. SUMMARY

[0003] The utility model provides a kind of automobile rear bumper active side wing assembly for reducing the wind resistance of the rear bumper without changing the original shape as much as possible, comprising a side wing body, a rear bumper body and a driving device, one end of the side wing body is rotatably arranged on the rear bumper body, the other end of the side wing body is drivingly connected with the driving device, and the side wing body can be rotated to open or fold under the driving of the driving device relative to the rear bumper body, so as to reduce the wind resistance of the tail of vehicle body or restore the wind resistance of the tail of vehicle body.

[0004] Further, the side wing body can move between a first position and a second position. In the first position, the side wing body is fitted with a first profile of the rear bumper body. In the second position, the side wing body is opened relative to the side of the first profile facing outward.

[0005] Further, it further includes a third pivot part, the third pivot part is arranged on the first profile, and the third pivot part is used to rotatably connect the side wing body with the rear bumper body.

[0006] Further, the first profile is located between a side wall and a trunk lid in the X direction of the vehicle, and is located between the trunk lid and a fender in the Z direction of the vehicle.

[0007] Further, the driving device comprises a power source and a transmission device, the power source is used for outputting power to the transmission device, the power source is embedded in the rear bumper body, and the transmission device is used for driving the side wing body under the driving of the power source, and the input end and the output end of the transmission device are in transmission connection with the power source and the side wing body respectively.

[0008] Further, the rear bumper body comprises a mounting port formed on the rear bumper body, the input end of the transmission device is arranged in the mounting port, and the output end of the transmission device can move out of the mounting port.

[0009] Further, the transmission device comprises a first rotating shaft part, a crank, a rocker and a second rotating shaft part, the first rotating shaft part is in transmission connection with the power source, the first rotating shaft part can rotate under the driving of the power source, the crank is fixedly connected with the first rotating shaft part and can rotate together with the first rotating shaft part, the rocker is rotatably connected with the crank, the second rotating shaft part is rotatably connected with the crank, the side wing body is rotatably connected with the second rotating shaft part, and the transmission device can drive the side wing body to open relative to the rear bumper body under the driving of the power source.

[0010] Further, the transmission device comprises a first rotating shaft part, a crank, a rocker and a second rotating shaft part, the first rotating shaft part is in transmission connection with the power source, the first rotating shaft part can rotate under the driving of the power source, the crank is fixedly connected with the first rotating shaft part and can rotate together with the first rotating shaft part, the rocker is rotatably connected with the crank, the second rotating shaft part is rotatably connected with the crank, the side wing body is rotatably connected with the second rotating shaft part, and the transmission device can drive the side wing body to open relative to the rear bumper body under the driving of the power source.

[0011] Further, the transmission device comprises a first rotating shaft part, a crank, a rocker and a second rotating shaft part, the first rotating shaft part is in transmission connection with the power source, the first rotating shaft part can rotate under the driving of the power source, the crank is fixedly connected with the first rotating shaft part and can rotate together with the first rotating shaft part, the rocker is rotatably connected with the crank, the second rotating shaft part is rotatably connected with the crank, the side wing body is rotatably connected with the second rotating shaft part, and the transmission device can drive the side wing body to open relative to the rear bumper body under the driving of the power source.

[0012] Further, the utility model still includes a car, it includes preceding automobile rear protection active side wing assembly.

[0013] The automobile rear protection active side wing assembly provided by the utility model realizes the control of the tail wind resistance of the vehicle body through the side wing body which can be actively opened or folded, makes the wind resistance of the rear bumper controllable and reducible under the premise of changing the original modeling as little as possible, has low cost and is beautiful in modeling. ACCREDITATION OF DRAWINGS

[0014] Figure 1 It is the schematic view of automobile rear protection active side wing assembly provided by the utility model.

[0015] Figure 2 It is the schematic view of automobile rear protection active side wing assembly provided by the utility model.

[0016] Figure 3 It is the A-A towards sectional view of side wing body in the utility model when being located in the first position.

[0017] Figure 4 is a A-A sectional view of the side wing body in the second position in the utility model.

[0018] Figure 5 is a schematic view of the driving device and the side wing body in the first position in the utility model.

[0019] Figure 6 is a schematic view of the driving device and the side wing body in the second position in the utility model.

[0020] In the figure: 1, side wing body; 11, blade connecting part; 12, blade reinforcing rib; 2, rear bumper body; 21, third rotating shaft part; 2a, first profile; 3, driving device; 31, power source; 321, first rotating shaft part; 322, crank; 323, rocker; 324, second rotating shaft part; 5, luggage cover. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects taken by the utility model to achieve the predetermined invention purposes, the utility model is described in detail as follows by combining with the drawings and preferred embodiments.

[0022] It should be noted that the terms "first", "second", "third", "fourth" and the like in the specification and claims of the utility model are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0023] Please refer to Figures 1-2The automobile rear bumper active side wing assembly in the utility model is arranged on the side of the automobile rear bumper and close to the side wall, and the automobile rear bumper active side wing assembly located at the right rear of the automobile will be taken as an example to be described in the specification, and the automobile rear bumper active side wing assembly located at the left rear of the automobile is also symmetrically arranged, and the structure and working mode thereof are the same as those of the automobile rear bumper active side wing assembly located at the right rear of the automobile, and thus will not be described herein again. The automobile rear bumper active side wing assembly comprises a side wing body 1, a rear bumper body 2 and a driving device 3, one end of the side wing body 1 is rotatably arranged on the rear bumper body 2, the other end of the side wing body 1 is in transmission connection with the driving device 3, and the side wing body 1 can be rotated to be opened or folded under the driving of the driving device 3 relative to the rear bumper body 2, so as to reduce the wind resistance of the tail of the vehicle body or restore the wind resistance of the tail of the vehicle body. Specifically, in the embodiment, the side wing body 1 is located at a first position when the side wing body 1 is not opened relative to the rear bumper, at this time, the side wing body 1 is attached to the first profile 2a of the rear bumper body 2, and the side wing body 1 is located at a second position when the side wing body 1 is opened relative to the rear bumper, at this time, an included angle is formed between the side wing body 1 and the first profile 2a of the rear bumper body 2. The first profile 2a is located between the side wall and the trunk lid 5 in the X direction of the automobile, and is located between the trunk lid 5 and the fender in the Z direction of the automobile. In particular, in the preferred embodiment of the utility model, the side wing body 1 is shaped to be similar to the first profile 2a, and the side wing body 1 arranged in this way can be visually integrated into the original rear bumper body 2 without changing the original shape of the automobile, and can also reduce the influence of the side wing body 1 on the wind resistance of the tail of the vehicle when the side wing body 1 is located at the first position. Please refer to Figures 3-4 When the side wing body 1 is located at the first position, the tail of the vehicle behind the rear bumper body 2 still forms a large wind resistance, and when the side wing body 1 is located at the second position, the side wing body 1 forms a structure feature protruding relative to the rear bumper body 2 on the side of the rear bumper body 2, so that the airflow flowing through the rear bumper body 2 and the side wing body 1 thereon quickly separates from the vehicle body and no longer attaches to the rear bumper body 2, the vortex formed by the airflow is far away from the tail of the vehicle, the drag force on the tail of the vehicle is small, that is, the wind resistance is small, and the included angle between the second position and the first position needs to be determined according to simulation and experiment to ensure the best drag reduction effect. The automobile rear bumper active side wing assembly of the utility model realizes the wind resistance control of the tail of the vehicle through the side wing body 1 which can be transformed between the folded first position and the opened second position, and realizes the active control of the wind resistance of the tail of the vehicle body.

[0024] Further, please refer to Figures 5-6The driving device 3 comprises a power source 31 and a transmission device, the power source 31 is used to output power to the transmission device, the power source 31 is embedded in the rear bumper body 2, the transmission device is used to drive the side wing body 1 under the driving of the power source 31, the input end and the output end of the transmission device are respectively in transmission connection with the power source 31 and the side wing body 1. Specifically, in the embodiment, the rear bumper body 2 comprises a mounting port opened on the first profile 2a, the input end of the transmission device is arranged in the mounting port, the output end of the transmission device can move out of the mounting port, when the side wing body 1 is located at the first position, the side wing body 1 shields the mounting port, the mounting port and the transmission device in it are invisible; the transmission device comprises a first rotating shaft part 321, a crank 322, a rocker 323 and a second rotating shaft part 324, the first rotating shaft part 321 is fixedly connected with the power source 31 and can rotate together with the output shaft of the power source 31, the crank 322 is fixedly connected with the first rotating shaft part 321 and can rotate together with the first rotating shaft part 321, the rocker 323 is rotatably connected with the crank 322, the second rotating shaft part 324 is rotatably connected with the crank 322, the side wing body 1 is rotatably connected with the second rotating shaft part 324, so that the side wing body 1 can be opened relative to the rear bumper body 2 under the driving of the power source 31.

[0025] When the driving device 3 works, at least the side wing body 1 can be driven to move from the first position to the second position or from the second position to the first position, so as to rotate and open or fold the side wing body 1 relative to the rear bumper body 2. Specifically, in the embodiment, the power source 31 is arranged as a motor with a one-way rotating output shaft, the first rotating shaft part 321 is sleeved on the motor output shaft of the power source 31, therefore, when the side wing body 1 is driven to move from the first position to the second position, the power source 31 drives the first rotating shaft part 321 to rotate clockwise by half a circle, the crank 322 rotates clockwise together with the first rotating shaft part 321, the rocker 323 is driven by the crank 322 to push the side wing body 1 connected thereto away from the power source 31 and the crank 322, so as to push the side wing body 1 from the first position to the second position; when the side wing body 1 is driven to move from the first position to the second position, the power source 31 drives the first rotating shaft part 321 to rotate clockwise by half a circle again, the crank 322 rotates clockwise together with the first rotating shaft part 321, the rocker 323 is driven by the crank 322 to pull the side wing body 1 connected thereto close to the power source 31 and the crank 322, so as to pull the side wing body 1 from the second position to the first position. It is easy to understand that in other preferable embodiments of the utility model, the power source 31 can also be arranged as a motor with a two-way rotating output shaft or other direct current motors with similar functions, the connection mode and type of the first rotating shaft part 321, the crank 322, the rocker 323 and the second rotating shaft part 324 can be adjusted and changed correspondingly, if the power source 31 is arranged as a motor with a two-way rotating output shaft, then the movement mode of the power source 31 can be rotating in one direction first, and then rotating in the opposite direction to return to the original position. The driving device 3 in the utility model has simple control logic and simple structure, and the overall cost is low, so that the active control of the side wing body 1 is realized at low cost.

[0026] Please refer to Figure 1 、 Figure 5 and Figure 6Further, the automobile rear bumper active side wing assembly further comprises a blade connecting portion 11 arranged on the side wing body 1 and a third rotating shaft portion 21 arranged on the first profile 2a, the blade connecting portion 11 is arranged on one side of the side wing body 1 facing the first profile 2a and is integrally connected with the side wing body 1, and the second rotating shaft portion 324 is rotatably connected with the blade connecting portion 11; the third rotating shaft portion 21 is arranged on the first profile 2a, and is used for rotatably connecting the side wing body 1 with the rear bumper body 2, when the side wing body 1 is transformed between the first position and the second position, the side wing body 1 is essentially rotated with the third rotating shaft portion 21 as the shaft. Specifically, in the embodiment, the third rotating shaft portion 21 is a clamping spring mounted on the first profile 2a; the blade connecting portion 11 is a rod-shaped structure extending along the length direction of the side wing body 1, and a blade reinforcing rib 12 is further arranged on the blade connecting portion 11, the blade reinforcing rib 12 is arranged on the blade connecting portion 11 and integrally connected with the side wing body 1, the blade reinforcing rib 12 is arranged along the length direction of the automobile body on the side wing body 1, and the blade reinforcing rib 12 is used for improving the rigidity of the connection between the driving device 3 and the side wing body 1, and improving the service life of the automobile rear bumper active side wing assembly. In other preferable embodiments of the utility model, the blade connecting portion 11 can also be arranged as a plate-shaped structure similar to the shape of the side wing body 1 to better fix the side wing body 1.

[0027] Further, the automobile rear bumper active side wing assembly further comprises a control unit, the control unit is used for controlling the driving device 3, and the side wing body 1 can be opened or folded under the control of the control unit relative to the rear bumper body 2. Specifically, in the embodiment, the control unit is an automobile central control, the automobile central control is electrically connected with the driving device 3 through a wire harness embedded in the automobile body panel and interior trim, the automobile central control monitors the vehicle speed in real time and sends corresponding control signals to the driving device 3 according to the vehicle speed, for example: when the automobile central control detects that the vehicle speed is greater than 60 Kph, it is judged that the wind resistance needs to be reduced, and a signal for opening the side wing body 1 is sent to the driving device 3, and the driving device 3 correspondingly executes the opening of the side wing body 1 from the first position to the second position; when the automobile central control detects that the vehicle speed is lower than 50 Kph, it is judged that the wind resistance no longer needs to be reduced, and a signal for folding the side wing body 1 is sent to the driving device 3, and the driving device 3 correspondingly executes the folding of the side wing body 1 from the second position to the first position. The automobile rear bumper active side wing assembly of the utility model realizes the control of the tail wind resistance based on the current vehicle speed through the control unit, reduces the wind resistance of the rear bumper under the premise of not changing the original modeling as much as possible, and has good economic benefits.

[0028] Further, the utility model further comprises an automobile, which comprises the automobile rear bumper active side wing assembly.

[0029] In summary, the active side wing assembly of the rear bumper of this utility model achieves control of the wind resistance at the rear of the vehicle through the side wing body that can be actively opened or retracted. It makes the wind resistance of the rear bumper controllable and reduced without changing the original shape as much as possible, and has a low cost and beautiful appearance.

[0030] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An active side wing assembly for a rear bumper of an automobile, characterized in that: It includes a side wing body (1), a rear bumper body (2) and a drive device (3). One end of the side wing body (1) is rotatably mounted on the rear bumper body (2), and the other end of the side wing body (1) is connected to the drive device (3). The side wing body (1) can rotate to open or retract relative to the rear bumper body (2) under the drive of the drive device (3) to reduce the wind resistance at the rear of the vehicle or restore the wind resistance at the rear of the vehicle.

2. The automotive rear bumper active side wing assembly as described in claim 1, characterized in that: The side wing body (1) is movable between a first position and a second position. In the first position, the side wing body (1) is in contact with the first surface (2a) of the rear bumper body (2). In the second position, the side wing body (1) opens relative to the side of the first surface (2a) facing outwards from the vehicle.

3. The automotive rear bumper active side wing assembly as described in claim 2, characterized in that: It also includes a third pivot (21), which is disposed on the first profile (2a) and is used to rotatably connect the side wing body (1) and the rear bumper body (2).

4. The automotive rear bumper active side wing assembly as described in claim 2, characterized in that: The first profile (2a) is located between the side panel and the trunk lid (5) in the X direction of the vehicle, and between the trunk lid (5) and the fender in the Z direction of the vehicle.

5. The automotive rear bumper active side wing assembly as described in claim 1, characterized in that: The drive device (3) includes a power source (31) and a transmission device. The power source (31) is used to output power to the transmission device. The power source (31) is embedded in the rear bumper body (2). The transmission device is used to drive the side wing body (1) under the drive of the power source (31). The input end and output end of the transmission device are respectively connected to the power source (31) and the side wing body (1).

6. The automotive rear bumper active side wing assembly as described in claim 5, characterized in that: The rear bumper body (2) includes a mounting port opened on the rear bumper body (2), the input end of the transmission device is disposed in the mounting port, and the output end of the transmission device can move to the outside of the mounting port.

7. The automotive rear bumper active side wing assembly as described in claim 5, characterized in that: The transmission device includes a first rotating shaft (321), a crank (322), a rocker arm (323), and a second rotating shaft (324). The first rotating shaft (321) is connected to the power source (31) and can rotate under the drive of the power source (31). The crank (322) is fixedly connected to the first rotating shaft (321) and can rotate together with the first rotating shaft (321). The rocker arm (323) is rotatably connected to the crank (322). The second rotating shaft (324) is rotatably connected to the crank (322). The side wing body (1) is rotatably connected to the second rotating shaft (324). The transmission device can drive the side wing body (1) to open relative to the rear bumper body (2) under the drive of the power source (31).

8. The automotive rear bumper active side wing assembly as described in claim 7, characterized in that: It also includes a blade connecting part (11), which is fixedly connected to the side wing body (1) as a whole, and the second rotating shaft part (324) is rotatably connected to the blade connecting part (11).

9. The active side wing assembly for the rear bumper of an automobile as described in claim 1, characterized in that: It also includes a control unit for controlling the drive device (3), and the side wing body (1) can rotate to open or retract relative to the rear bumper body (2) under the control of the control unit.

10. A car, characterized in that: It includes the active side wing assembly for the rear bumper of a vehicle as described in any one of claims 1 to 9.

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