Rear turbulent flow diffuser and automobile with same
By designing a rear spoiler and diffuser at the rear of the car and using spoilers and bulges to improve the airflow direction, the problem of high wind resistance caused by the vortex area at the rear of the car is solved and a longer cruising range is achieved.
Patent Information
- Application Number
- CN202420220810.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-29
AI Technical Summary
When the car is driving at a high speed, the vortex zone at the rear of the car causes greater wind resistance, affecting power, stability and range.
Design a rear spoiler diffuser, which includes a rear bumper, a bottom guard, a spoiler and a bulge. By improving the wind resistance structure at the rear of the car, the airflow under the bottom guard is separated in advance and the wind resistance is reduced.
It effectively reduces the wind resistance at the rear of the vehicle and improves the vehicle's comprehensive cruising range without affecting the vehicle's passability and departure angle.
Smart Images
Figure CN222373006U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile interior and exterior decoration, in particular to a rear spoiler diffuser and an automobile. Background Art
[0002] According to relevant research results, the aerodynamic characteristics of a car directly affect its power, stability, handling, economy and ride comfort. When the car's speed exceeds 100km / h, aerodynamic drag accounts for nearly 80% of the total drag. For fuel vehicles, every 10% reduction in wind resistance can reduce fuel consumption by at least 2%; for new energy vehicles, the advantage of low wind resistance is even more obvious. Every 10% reduction in wind resistance can increase the comprehensive operating range by 3-4%.
[0003] When a car is driving, there is usually a large eddy zone at the rear of the vehicle. The shape and size of the eddy zone have a great influence on the wind resistance of the entire vehicle. Setting a structure to reduce wind resistance and improve airflow direction in this area can effectively reduce wind resistance, thereby effectively improving the comprehensive operating range. Summary of the invention
[0004] The utility model provides a rear spoiler diffuser for reducing the wind resistance of a rear part of a vehicle, comprising a rear bumper and a bottom guard plate located at the rear part of the vehicle, wherein the bottom guard plate is arranged below the rear bumper in the Z direction and is connected with the rear bumper as a whole, and the rear spoiler diffuser further comprises a spoiler and a raised portion for improving the wind resistance of the rear part of the vehicle, wherein the spoiler is arranged at the connection between the rear bumper and the bottom guard plate, wherein the spoiler is arranged below the bottom guard plate and the rear bumper in the Z direction, wherein the spoiler is extended backwards along the X direction from the connection between the rear bumper and the bottom guard plate, wherein the raised portion is arranged at the middle part of the bottom guard plate in the X direction and below the bottom guard plate in the Z direction, and wherein the raised portion is extended backwards along the X direction and downwards along the Z direction from the bottom guard plate.
[0005] Further, a size of the protrusion in the Z direction is smaller than a size of the spoiler in the Z direction, and the protrusion is located below the spoiler in the Z direction.
[0006] Furthermore, the raised portion is crescent-shaped with the flange facing the rear of the vehicle and the recessed edge facing the front of the vehicle, and the size of the raised portion in the Y direction is the same as the size of the bottom guard plate in the Y direction.
[0007] Furthermore, the rear bumper includes a transition connection portion, through which the rear bumper is integrally connected to the end of the bottom guard plate in the X direction, and the spoiler is arranged at the connection between the transition connection portion and the bottom guard plate, and the transition connection portion is arranged behind the spoiler and the raised portion in the X direction.
[0008] Furthermore, the bottom guard plate includes a connecting hole, which is opened along the Z direction at the end of the bottom guard plate in the X direction, and the bottom guard plate and the transition connection part are screwed together through the connecting hole, and the connecting hole is arranged between the protruding part and the spoiler in the X direction.
[0009] Furthermore, the transition connection portion also includes a fog lamp mounting portion, which is arranged behind the spoiler and the protrusion in the X direction and above the spoiler and the protrusion in the Z direction, and is used to install a rear fog lamp.
[0010] Furthermore, the rear bumper also includes a license plate mounting portion, which is arranged above the transition connection portion along the Z direction and is integrally fixed to the transition connection portion, and the license plate mounting portion is used to mount a vehicle license plate.
[0011] Furthermore, the rear bumper also includes a wheel eyebrow connecting portion, which is arranged above the bottom guard plate and the transition connecting portion in the Z direction and on both sides of the rear bumper in the Y direction. The wheel eyebrow connecting portion is used to connect the rear bumper and the wheel eyebrow, and a streamlined wind guide rib is arranged on the wheel eyebrow connecting portion.
[0012] Furthermore, the utility model also includes a car, which includes the aforementioned rear spoiler diffuser.
[0013] Furthermore, the car is a new energy car.
[0014] The rear spoiler diffuser provided by the utility model improves the airflow direction at the rear of the vehicle through the rear bumper, bottom guard plate, spoiler and raised part for improving the wind resistance at the rear of the vehicle, and separates the airflow under the bottom guard plate in advance without affecting the vehicle's passability and departure angle, thereby reducing wind resistance and improving the comprehensive endurance mileage of the vehicle. The spoiler and raised part in the utility model are respectively structures integrally formed with the rear bumper and bottom guard plate, with simple process and low cost, and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the exterior of the rear spoiler diffuser provided by the utility model.
[0016] Figure 2 It is a schematic diagram of the interior of the rear spoiler diffuser in the present invention.
[0017] Figure 3 It is a side schematic diagram of the rear spoiler diffuser in the present invention.
[0018] Figure 4 It is a bottom view of the rear spoiler diffuser in the utility model.
[0019] Figure 5 It is a bottom view of the rear bumper in the present invention.
[0020] Figure 6 It is a bottom view of the bottom guard plate in the present utility model.
[0021] Figure 7 It is a side view of the bottom guard plate in the present utility model. DETAILED DESCRIPTION
[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the present invention is described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0023] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0024] The directional terms "X direction", "Y direction" and "Z direction" in this specification refer to the "body X direction", "body Y direction" and "body Z direction" commonly seen in the automotive field, respectively. The "body X direction" refers to the length direction of the body, and is also the front-to-back direction, with the front direction as the negative direction, i.e., X-; the "body Y direction" refers to the width direction of the body, with the direction from the cab side to the left door side as the negative direction, i.e., Y-; the "body Z direction" refers to the height direction of the body, and is also the gravity direction and the up-down direction, with the gravity direction as the negative direction, i.e., Z-.
[0025] See also Figures 1 to 3The utility model discloses a rear spoiler diffuser, which is arranged at the rear of the vehicle, specifically in the area behind the rear suspension. The rear spoiler diffuser in the utility model comprises a rear bumper 1, a bottom guard plate 2, a spoiler 3 and a raised portion 4 for improving the wind resistance of the rear of the vehicle, the bottom guard plate 2 is arranged below the rear bumper 1 in the Z direction and is connected to the rear bumper 1 as a whole, the spoiler 3 is arranged at the connection between the rear bumper 1 and the bottom guard plate 2, the spoiler 3 is arranged below the bottom guard plate 2 and the rear bumper 1 in the Z direction, the spoiler 3 is extended backward along the X direction from the connection between the rear bumper 1 and the bottom guard plate 2, the raised portion 4 is arranged at the middle of the bottom guard plate 2 in the X direction and below the bottom guard plate 2 in the Z direction, and the raised portion 4 is extended backward along the X direction and downward along the Z direction from the bottom guard plate 2. Specifically, the size of the raised portion 4 in the utility model in the Z direction is smaller than the size of the spoiler 3 in the Z direction. The raised portion 4 is located below the spoiler 3 in the Z direction. The raised portion 4 is a crescent shape with the flange facing the rear of the vehicle and the concave edge facing the front of the vehicle. The size of the raised portion 4 in the Y direction is the same as the size of the bottom guard plate 2 in the Y direction. The rear spoiler diffuser of the utility model uses the raised portion 4 located in the middle of the bottom guard plate 2 and in the shape of a crescent to separate the airflow at the raised portion 4 to form a vortex, which effectively reduces the wind resistance at the rear of the vehicle. Figure 3 The arrows in the figure show the direction of the airflow in the vortex. In particular, the size of the spoiler 3 in the utility model in the Z direction is smaller than the size of the raised portion 4 in the Z direction. This is because the spoiler 3 should not be too close to the ground, otherwise it will affect the passability and departure angle of the car. Since the position of the raised portion 4 in the X direction is located in the middle of the bottom guard plate 2, which is closer to the front of the car than the spoiler 3, the size of the raised portion 4 in the Z direction will not affect the passability and departure angle of the car to a certain extent. In order to reduce wind resistance, the raised portion 4 can be set larger in the Z direction. In this embodiment, the raised portion 4 is integrally formed with the bottom guard plate 2, and the size of the raised portion 4 in the X direction is 113mm, and the size in the Z direction is 17mm; the spoiler 3 is integrally connected with the rear guard, and the size of the spoiler 3 in the X direction is 16mm, and the size in the Z direction is 19mm.
[0026] Please also read Figure 4 and Figure 5Further, the rear bumper 1 includes a transition connection portion 5, through which the rear bumper 1 is connected to the end of the bottom guard plate 2 in the X direction, and the spoiler 3 is arranged at the connection between the transition connection portion 5 and the bottom guard plate 2, and the transition connection portion 5 is arranged behind the spoiler 3 and the raised portion 4 in the X direction. Specifically, in this embodiment, the transition connection portion 5 is connected to the bottom guard plate 2 at the lower end in the Z direction, and the spoiler 3 is arranged on the end, and the transition connection portion 5 is an inclined surface arranged from the rear bumper 1 to the front of the vehicle, and the spoiler 3 is located below the transition connection portion 5 in the Z direction and is fixedly connected to the transition connection portion 5. The rear bumper 1 and the bottom guard plate 2 in the utility model are assembled into one piece through the transition connection portion 5, and the assembly difficulty is low and the precision is high.
[0027] Please refer to Figure 1 and Figure 2 Further, the rear bumper 1 further includes a license plate mounting portion 52 and a fog lamp mounting portion 51. The fog lamp mounting portion 51 is arranged behind the spoiler 3 and the raised portion 4 in the X direction and above the spoiler 3 and the raised portion 4 in the Z direction. The license plate mounting portion 52 is arranged above the transition connection portion 5 in the Z direction and is integrally connected with the transition connection portion 5. The license plate mounting portion 52 is used to mount the vehicle license plate, and the fog lamp mounting portion 51 is used to mount the rear fog lamp. Specifically, Figure 1 and Figure 2 The external perspective and internal perspective of the rear spoiler diffuser of the present invention are respectively shown. In this embodiment, the fog lamp mounting portion 51 is located in the middle of the transition connection portion 5 in the Z direction, and the license plate mounting portion 52 is located above the transition connection portion 5. That is to say, the rear fog lamp is located below the vehicle license plate, and the spoiler 3 and the raised portion 4 are located below the rear fog lamp, which is suitable for new energy vehicle models.
[0028] Please refer to Figure 3 Further, the rear bumper 1 further includes a fender connection portion 6, which is arranged above the bottom guard plate 2 and the transition connection portion 5 in the Z direction and located on both sides of the rear bumper 1 in the Y direction. The fender connection portion 6 is used to connect the rear bumper 1 with the wheel fender, and a streamlined wind guide rib 7 is arranged on the fender connection portion 6. Specifically, in this embodiment, the fender connection portion 6 is located above the transition connection portion 5 and the bottom guard plate 2 in the Z direction, and the wind guide rib 7 is located above the spoiler 3 and the raised portion 4 in the Z direction. The spoiler 3 and the raised portion 4 are used to form vortices under the car to reduce wind resistance, and the wind guide rib 7 is used to reduce wind resistance on the side of the car. The three can comprehensively improve the airflow direction of the car.
[0029] Please also read Figure 6 and Figure 7Further, the bottom guard plate 2 includes a connection hole 21, which is opened along the Z direction at the end of the bottom guard plate 2 in the X direction. The bottom guard plate 2 and the transition connection portion 5 are screwed together through the connection hole 21, and the connection hole 21 is arranged between the protrusion 4 and the spoiler 3 in the X direction. Specifically, in this embodiment, two connection holes 21 are arranged on both sides of the center of the bottom guard plate 2, one on the left and one on the right. The projection of the connection hole 21 on the XY plane has no overlapping part with the projection of the protrusion 4 on the XY plane and the projection of the spoiler 3 on the XY plane. The connection holes 21 arranged in this way are less difficult to assemble and the overall production cost is lower.
[0030] Furthermore, the utility model also provides a car, which includes the aforementioned rear spoiler diffuser. In a preferred embodiment of the utility model, it is a new energy car.
[0031] In summary, the rear spoiler diffuser of the utility model improves the airflow direction at the rear of the vehicle through the rear bumper, bottom guard plate, and spoiler and raised portion for improving the wind resistance at the rear of the vehicle, and separates the airflow under the bottom guard plate in advance without affecting the vehicle's passability and departure angle, thereby reducing wind resistance and improving the comprehensive endurance mileage of the vehicle. The spoiler and raised portion in the utility model are respectively structures integrally formed with the rear bumper and bottom guard plate, with simple process and low cost, and are easy to promote.
[0032] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A rear spoiler diffuser, characterized in that: The invention comprises a rear bumper (1) and an underbody guard (2) located at the rear of a vehicle, wherein the underbody guard (2) is arranged below the rear bumper (1) in the Z direction and is integrally connected to the rear bumper (1), and the rear spoiler diffuser further comprises a spoiler (3) and a raised portion (4) for improving the wind resistance at the rear of the vehicle, wherein the spoiler (3) is arranged at the connection between the rear bumper (1) and the underbody guard (2), wherein the spoiler (3) is arranged below the underbody guard (2) and the rear bumper (1) in the Z direction, wherein the spoiler (3) is extended backwards along the X direction from the connection between the rear bumper (1) and the underbody guard (2), wherein the raised portion (4) is arranged at the middle of the underbody guard (2) in the X direction and below the underbody guard (2) in the Z direction, wherein the raised portion (4) is extended backwards along the X direction and downwards along the Z direction from the underbody guard (2).
2. The rear spoiler diffuser according to claim 1, characterized in that: The dimension of the protrusion (4) in the Z direction is smaller than the dimension of the spoiler (3) in the Z direction, and the protrusion (4) is located below the spoiler (3) in the Z direction.
3. The rear spoiler diffuser according to claim 1, characterized in that: The raised portion (4) is crescent-shaped with the flange facing the rear of the vehicle and the recessed edge facing the front of the vehicle, and the size of the raised portion (4) in the Y direction is the same as the size of the bottom guard plate (2) in the Y direction.
4. The rear spoiler diffuser according to claim 1, characterized in that: The rear bumper (1) comprises a transition connection portion (5), and the rear bumper (1) is integrally connected to the end of the bottom guard plate (2) in the X direction through the transition connection portion (5); the spoiler (3) is arranged at the connection between the transition connection portion (5) and the bottom guard plate (2), and the transition connection portion (5) is arranged behind the spoiler (3) and the raised portion (4) in the X direction.
5. The rear spoiler diffuser according to claim 4, characterized in that: The bottom guard plate (2) comprises a connection hole (21), the connection hole (21) being opened along the Z direction at the end of the bottom guard plate (2) in the X direction, the bottom guard plate (2) and the transition connection portion (5) being screwed together via the connection hole (21), and the connection hole (21) being arranged between the protruding portion (4) and the spoiler (3) in the X direction.
6. The rear spoiler diffuser according to claim 4, characterized in that: The transition connection portion (5) also includes a fog lamp installation portion (51), which is arranged behind the spoiler (3) and the protruding portion (4) in the X direction and above the spoiler (3) and the protruding portion (4) in the Z direction. The fog lamp installation portion (51) is used to install a rear fog lamp.
7. The rear spoiler diffuser according to claim 4, characterized in that: The rear bumper (1) further comprises a license plate mounting portion (52), wherein the license plate mounting portion (52) is arranged above the transition connection portion (5) along the Z direction and is integrally fixed to the transition connection portion (5), and the license plate mounting portion (52) is used for mounting a vehicle license plate.
8. The rear spoiler diffuser according to claim 4, characterized in that: The rear bumper (1) also includes a wheel eyebrow connecting portion (6), which is arranged above the bottom guard plate (2) and the transition connecting portion (5) in the Z direction and located on both sides of the rear bumper (1) in the Y direction. The wheel eyebrow connecting portion (6) is used to connect the rear bumper (1) and the wheel eyebrow, and a streamlined wind guide rib (7) is arranged on the wheel eyebrow connecting portion (6).
9. A car, characterized in that: It comprises the rear spoiler diffuser according to any one of claims 1 to 8.
10. The automobile according to claim 9, characterized in that: The car is a new energy car.