Vehicle rear spoiler

Abstract

We provide a rear spoiler for vehicles that can further enhance the effect of aerodynamic improvement. [Solution] The rear spoiler 20 for the vehicle comprises a rear spoiler body 21 and through holes 22 that penetrate the rear spoiler body 21 in the vertical direction. Multiple through holes 22 are formed along the left-right direction and the front-rear direction of the vehicle. As multiple through holes 22 are formed along the left-right direction and the front-rear direction of the vehicle, when the vehicle is in motion, a portion of the airflow passes through the through holes 22 in the vertical direction. Therefore, most of the airflow flows so as to be in close contact with the upper surface of the rear spoiler body 21, improving the aerodynamics at the rear of the vehicle 10 and improving the overall aerodynamic performance of the vehicle 10.

Description

TECHNICAL FIELD

[0001] The present invention relates to a rear spoiler for a vehicle.

BACKGROUND ART

[0002] As a conventional rear spoiler for a vehicle, for example, a structure described in Patent Document 1 is known.

[0003] In the roof spoiler described in Patent Document 1, a bypass passage that opens to the upper surface guide portion and opens to the rear side of the front surface guide portion is formed in communication with the main body portion of the roof spoiler. This bypass passage extends in a direction intersecting the front surface guide portion. Accordingly, a part of the airflow guided by the upper surface guide portion is guided as an airflow so as to intersect with the airflow guided by the front surface guide portion. As a result, the amount of the airflow guided along the rear glass increases, so that adhesion of deposits to the outer surface of the rear glass can be prevented, and the antifouling function is improved while the function of the roof spoiler is exerted.

PRIOR ART DOCUMENTS

PATENT DOCUMENTS

[0004]

PATENT DOCUMENT 1

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0005] However, the invention described in the aforementioned background art has room for improvement from the viewpoint of further aerodynamic effects.

[0006] Specifically, in the roof spoiler described in Patent Document 1, the bypass passage through which traveling wind passes is formed at an intermediate portion thereof. However, with such a configuration of the roof spoiler, it is difficult to straighten the traveling wind flowing along the upper surface of the roof spoiler toward the rear. Accordingly, there has been a problem that it is not easy to effectively converge the air flow behind the vehicle.

[0007] This invention has been made in view of these problems, and the object of this invention is to provide a rear spoiler for a vehicle that can further enhance the effect of aerodynamic improvement. [Means for solving the problem]

[0008] A rear spoiler for a vehicle according to an embodiment of the present invention comprises a rear spoiler body and through holes that penetrate the rear spoiler body in the vertical direction, wherein a plurality of through holes are formed along the left-right direction and the front-rear direction of the vehicle. [Effects of the Invention]

[0009] According to the vehicle rear spoiler of the present invention, multiple through-holes are formed along the left-right and front-rear directions of the vehicle. Therefore, when the vehicle is in motion, a portion of the airflow escapes downward through the through-holes. As a result, most of the airflow flows in close contact with the upper surface of the rear spoiler body, improving aerodynamics at the rear of the vehicle and enhancing the overall aerodynamic performance of the vehicle. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side view showing a vehicle equipped with a rear spoiler for a vehicle according to an embodiment of the present invention. [Figure 2A] This is a perspective view showing the rear of a vehicle equipped with a rear spoiler for a vehicle according to an embodiment of the present invention. [Figure 2B] This is a perspective view showing the rear of a vehicle equipped with a rear spoiler for a vehicle according to an embodiment of the present invention. [Figure 3A] This is a cross-sectional view showing a rear spoiler for a vehicle according to an embodiment of the present invention, and its vicinity. [Figure 3B] This is a cross-sectional view showing a rear spoiler for a vehicle and its vicinity according to another embodiment of the present invention. [Modes for carrying out the invention]

[0011] Hereinafter, a rear spoiler 20 for a vehicle and a vehicle 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the directions of front, rear, up, down, left, and right will be used, but left and right will refer to the left and right when the vehicle 10 is viewed from the rear. Furthermore, in the following description, the same reference numerals will be used for the same components in principle, and repeated explanations will be omitted.

[0012] Figure 1 is a side view showing a vehicle 10 equipped with a rear spoiler 20.

[0013] Vehicle 10 can be, for example, a gasoline-powered car, a BEV (Battery Electric Vehicle), a HEV (Hybrid Electric Vehicle), or a PHEV (Plug-in Hybrid Electric Vehicle). Other types of vehicles such as passenger cars, SUVs (Sport-Utility Vehicles), and station wagons can also be used as vehicle 10.

[0014] A rear spoiler 20 is provided on the body 11 of the vehicle 10. The rear spoiler 20 is positioned on the upper rear end of the vehicle body 11 and is a component that generates an aerodynamic effect. In this embodiment, the aerodynamic performance of the vehicle 10 is improved by having the rear spoiler 20, thereby achieving energy savings when the vehicle 10 is in motion.

[0015] Figure 2A is a perspective view showing the rear of a vehicle 10 equipped with a rear spoiler 20. Figure 2B is a perspective view showing the rear of a vehicle 10 equipped with a rear spoiler 20 from a different angle. In Figure 2A, hatching is applied to the area where a large number of fastening portions 22 are formed in a matrix.

[0016] The vehicle rear spoiler 20 is a long aerodynamic member positioned near the upper end of the vehicle body 11, near the rear end, and extending along the width direction of the vehicle body 11. As will be described later, when the vehicle 10 is in motion, the vehicle rear spoiler 20 concentrates the airflow near the rear of the vehicle 10, thereby improving the aerodynamic performance of the vehicle 10.

[0017] A vehicle rear spoiler 20 mainly includes a rear spoiler main body portion 21 and a through hole 22 penetrating the rear spoiler main body portion 21 in the vertical direction.

[0018] The rear spoiler main body portion 21 has a spoiler intermediate portion 211, a spoiler left end portion 212, and a spoiler right end portion 213.

[0019] The spoiler intermediate portion 211 is a member extending along the left-right direction at the widthwise intermediate portion of the vehicle body 11. The upper surface of the spoiler intermediate portion 211 is a surface continuous with the roof 13. The spoiler intermediate portion 211 has a function of rectifying traveling wind generated along the roof 13 of the vehicle body 11.

[0020] The spoiler left end portion 212 is a portion that is continuous with the left end of the spoiler intermediate portion 211 and curves downward. The left side surface of the spoiler left end portion 212 is continuous with the rear end of the left side surface of the vehicle body 11. The spoiler left end portion 212 has a function of rectifying traveling wind flowing along the left side surface of the vehicle body 11.

[0021] The spoiler right end portion 213 is a portion that is continuous with the right end of the spoiler intermediate portion 211 and curves downward. The right side surface of the spoiler right end portion 213 is continuous with the rear end of the right side surface of the vehicle body 11. The spoiler right end portion 213 has a function of rectifying traveling wind flowing along the right side surface of the vehicle body 11.

[0022] In the present embodiment, the through hole 22 may not be formed in the spoiler left end portion 212 and the spoiler right end portion 213. By doing so, the aerodynamic effect at the rear of the vehicle 10 can be further improved.

[0023] The through-holes 22 are located in the spoiler's intermediate section 211. Multiple through-holes 22 are formed along the vehicle's left-right and front-rear directions, extending from the left end to the right end of the spoiler's intermediate section 211. More than 10 through-holes 22 are located along the vehicle's left-right direction, and more than 5 are located along the vehicle's front-rear direction. In other words, a large number of through-holes 22 are formed in a matrix along the front-rear and left-right directions. The formation of multiple through-holes 22 in the spoiler's intermediate section 211 allows some of the airflow to pass through the through-holes 22 downwards when the vehicle 10 is in motion. This significantly enhances the effect of rectifying the airflow by making it adhere closely to the upper surface of the spoiler's intermediate section 211. These details will be described later with reference to Figure 3A, etc.

[0024] Furthermore, the through-holes 22 are arranged symmetrically on both sides of the spoiler's intermediate section 211. That is, the position, number, and size of the through-holes 22 formed on the left side of the spoiler's intermediate section 211 are approximately the same as the position, number, and size of the through-holes 22 formed on the right side of the spoiler's intermediate section 211. In this way, the aerodynamic effect acting on the left side of the spoiler's intermediate section 211 and the aerodynamic effect acting on the right side of the spoiler's intermediate section 211 can be made approximately the same, thereby improving the stability of the vehicle 10 while it is in motion.

[0025] Figure 3A is a cross-sectional view showing the vehicle's rear spoiler 20 and its vicinity. In Figure 3A, the airflow 23 is shown by a dotted line. Figures 3A and 3B are also cross-sectional views along the AA section of Figure 2A. The AA section is a cross-section that includes the front-rear and up-down directions.

[0026] As described above, the vehicle rear spoiler 20 is an aerodynamic member attached near the rear end and near the upper end of the vehicle body 11. The rear spoiler body 21 has a hollow structure made of synthetic resin. The rear spoiler body 21 has a spoiler upper surface portion 2111 which constitutes its upper surface portion and a spoiler lower surface portion 2112 which constitutes its lower surface portion. Here, the spoiler upper surface portion 2111 may be parallel to the horizontal plane or may be an inclined surface that slopes downward toward the rear. Furthermore, the spoiler upper surface portion 2111 may be substantially flat or may be curved downward toward the rear.

[0027] The through-hole 22 is a hole that penetrates the spoiler's intermediate portion 211 in the vertical direction. Specifically, the through-hole 22 is a roughly cylindrical member that extends vertically within the interior of the spoiler's intermediate portion 211. The upper end of the through-hole 22 penetrates the spoiler's upper surface portion 2111. The lower end of the through-hole 22 penetrates the spoiler's lower surface portion 2112. With this configuration, the upper end of the through-hole 22 is exposed on the upper surface of the spoiler's upper surface portion 2111, and the lower end of the through-hole 22 is exposed on the lower surface of the spoiler's lower surface portion 2112. In other words, the through-hole 22 connects the upper region of the spoiler's intermediate portion 211 with the lower region of the spoiler's intermediate portion 211.

[0028] Here, the lower end of the through-hole 22 is positioned behind the upper end of the rear glass 12. Specifically, multiple through-holes 22 are provided in the middle section 211 of the spoiler, and the lower ends of all through-holes 22 are positioned behind the upper end of the rear glass 12. This allows the airflow 23 escaping downward from the through-holes 22 to flow smoothly along the rear glass 12 when the vehicle is in motion.

[0029] The width L10 of the through-hole 22 is set to 20 mm or less. On the other hand, there is no particular limit on the lower limit of the through-hole 22, and within the range in which the through-hole 22 can be manufactured, a shorter width L10 is preferable. For example, the width L10 of the through-hole 22 is set to 1 mm or more. In order to improve the aerodynamic characteristics of the rear spoiler 20 for the vehicle, it is preferable to form many through-holes 22 with the shortest possible width L10 in the middle section 211 of the spoiler. By doing so, as will be described later, the airflow 23 can be brought into close contact with the upper surface 2111 of the spoiler.

[0030] The shape of the through-hole 22 when viewed from above may be, for example, circular, triangular, square, or a polygon with five or more sides.

[0031] Furthermore, the shape of the through-hole 22 in the longitudinal direction may be either a substantially straight shape or a curved shape.

[0032] Figure 3B is a cross-sectional view showing a rear spoiler 20 for a vehicle and its vicinity in another configuration. The configuration of the rear spoiler body 21 shown in Figure 3B is basically the same as that shown in Figure 3A, except that the angle at which the through-hole 22 extends is different. Specifically, in Figure 3A, the through-hole 22 extends along the vertical direction, but in Figure 3B, the through-hole 22 is inclined downward and backward. The angle θ at which the through-hole 22 is inclined from the horizontal plane is, for example, 45 degrees or more and less than 90 degrees. By inclining the through-hole 22 downward and backward, the airflow 23 can more easily pass through the through-hole 22 when the vehicle is in motion, and the aerodynamic function of the rear spoiler 20 for the vehicle can be further enhanced.

[0033] Next, with reference to Figure 3A, the function of the vehicle's rear spoiler 20 during vehicle operation will be explained.

[0034] First, the vehicle 10 generates airflow 23 as it moves. A portion of the airflow 23 flows towards the rear along the roof 13 of the vehicle body 11. The airflow 23 flows from the rear end of the roof 13 along the spoiler upper surface 2111 of the rear spoiler body 21. In this case, if no countermeasures are taken, the airflow 23 may move away from the upper surface of the spoiler upper surface 2111, and the aerodynamic improvement effect of the vehicle's rear spoiler 20 may not be fully realized.

[0035] In this embodiment, numerous through-holes 22 are formed in the spoiler's intermediate portion 211. As the vehicle 10 travels, the air pressure in the area below the spoiler's intermediate portion 211 is lower than in the area above the spoiler's intermediate portion 211. Therefore, some of the airflow 23 is drawn in through the through-holes 22 to the area below the spoiler's intermediate portion 211. Consequently, most of the airflow 23 flows towards the rear so as to be in close contact with the upper surface of the rear spoiler body 21, improving the aerodynamics in the rear region of the vehicle 10 and enhancing the overall aerodynamic performance of the vehicle 10.

[0036] The technical concepts that can be understood from the above-mentioned embodiment, along with their effects, are described below.

[0037] The rear spoiler for a vehicle of the present invention comprises a rear spoiler body and through holes that penetrate the rear spoiler body in the vertical direction, wherein a plurality of through holes are formed along the left-right direction and the front-rear direction of the vehicle. According to the rear spoiler for a vehicle of the present invention, because a plurality of through holes are formed along the left-right direction and the front-rear direction of the vehicle, a portion of the airflow during vehicle operation passes through the through holes in the vertical direction. As a result, most of the airflow flows so as to be in close contact with the upper surface of the rear spoiler body, improving aerodynamics at the rear of the vehicle and enhancing the overall aerodynamic performance of the vehicle.

[0038] Furthermore, the rear spoiler for vehicles of the present invention is characterized in that the through-hole is inclined downward and backward. According to the rear spoiler for vehicles of the present invention, by inclining the through-hole downward and backward, airflow can easily pass through the through-hole when the vehicle is in motion, and the function of the rear spoiler for vehicles can be further enhanced.

[0039] Furthermore, the rear spoiler for vehicles of the present invention is characterized in that the lower end of the through-hole is positioned further rearward than the upper end of the rear glass. According to the rear spoiler for vehicles of the present invention, when the vehicle is in motion, the airflow escaping downward from the through-hole can be smoothly circulated along the rear glass.

[0040] Furthermore, in the rear spoiler for vehicles of the present invention, the rear spoiler body has a spoiler middle section extending in the left-right direction, a spoiler left end section that curves continuously with the left end section of the spoiler middle section, and a spoiler right end section that curves continuously with the right end section of the spoiler middle section, and the through hole is provided in the spoiler middle section. According to the rear spoiler for vehicles of the present invention, by providing the through hole in the spoiler middle section, the airflow can be effectively directed downwards through the through hole, thereby further enhancing the function of the rear spoiler for vehicles.

[0041] Furthermore, the vehicle rear spoiler of the present invention is characterized in that the width of the through-hole is 20 mm or less. According to the vehicle rear spoiler of the present invention, by keeping the width of the through-hole below a certain level, interference between the through-hole and the airflow along the upper surface of the rear spoiler body can be suppressed.

[0042] Furthermore, the vehicle rear spoiler of the present invention is characterized in that 10 or more through-holes are arranged along the left-right direction of the vehicle, and 5 or more are arranged along the front-rear direction of the vehicle. According to the vehicle rear spoiler of the present invention, by arranging the through-holes in a predetermined number of rows, the effect achieved by the airflow passing through the through-holes during vehicle operation can be significantly enhanced.

[0043] Although embodiments of the present invention have been described above, the present invention is not limited thereto, and modifications are possible without departing from the spirit of the invention. Furthermore, the above-described embodiments can be combined with each other. [Explanation of Symbols]

[0044] 10 vehicles 11 Car body 12 Rear window 13 Roof 20 Rear spoiler for vehicles 21 Rear spoiler main body 211 Spoiler mid-section 2111 Spoiler top surface 2112 Spoiler underside 212 Spoiler, left end 213 Spoiler, right end 22 Through hole 23. Driving wind

Claims

1. The main body of the rear spoiler, The rear spoiler body has a through hole that penetrates vertically, The rear spoiler for a vehicle is characterized in that multiple through holes are formed along the left-right direction and the front-rear direction of the vehicle.

2. The rear spoiler for a vehicle according to claim 1, characterized in that the through hole is inclined backward toward the downward.

3. The rear spoiler for a vehicle according to claim 1, characterized in that the lower end of the through-hole is positioned further rearward than the upper end of the rear window.

4. The rear spoiler body is, The spoiler extends along the left-right direction, The left end of the spoiler curves continuously with the left end of the middle section of the spoiler, The spoiler has a right end that curves continuously with the right end of the middle section of the spoiler, The rear spoiler for a vehicle according to claim 1, characterized in that the through hole is disposed in the middle portion of the spoiler.

5. The rear spoiler for a vehicle according to claim 1, characterized in that the width of the through hole is 20 mm or less.

6. The rear spoiler for a vehicle according to claim 1, characterized in that 10 or more through holes are arranged along the left-right direction of the vehicle, and 5 or more are arranged along the front-rear direction of the vehicle.

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