CN107776688A - A kind of front spoiler and automotive front flow guide system - Google Patents

Abstract

The invention provides a front spoiler and an automobile front guide system. The front spoiler includes a first plate body and a second plate body, and the first plate body and the second plate body are connected to form a V-shaped structure . The automobile front deflector system comprises two front spoilers, a front bumper, an engine shield, a front wheel, a sub-frame and a fender, and the two front spoilers are arranged symmetrically on the wheels of the front wheels. cavity, the front spoiler includes a first plate body and a second plate body, the first plate body and the second plate body are connected to form a V-shaped structure, the first plate body and the second plate body The angled opening of the body faces the rear of the car and surrounds the front wheel, and the second plate body of the two front spoilers forms a "eight" shape with the opening facing the front of the car. The front spoiler and the vehicle front guide system of the present invention can not only reduce the air resistance and aerodynamic noise of the front spoiler body, but also can effectively guide the airflow to flow along both sides of the front spoiler, significantly reducing the wind resistance of the whole vehicle , wind noise.

Description

A kind of front spoiler and automobile front guide system

technical field

The invention belongs to the technical field of automobile parts, in particular to a front spoiler and an automobile front deflector system.

Background technique

With the increasingly stringent automobile emission regulations, the automobile industry has higher and higher requirements for energy saving and emission reduction. The aerodynamic characteristics of a car are an important factor affecting fuel economy. The airflow at the bottom of the vehicle and the wheel area is complex and unstable, and the proportion of wind resistance of the vehicle is second only to that of the body. The installation of a front spoiler can improve the flow field distribution in the wheel area and reduce the energy dissipation of the wheel and the bottom area of the car body. Obvious drag-reducing effect is obtained. By designing different forms of front spoiler structures, the air flow at the wheels and bottom of the car can be improved, and the impact of the front spoiler on fuel economy and aerodynamic characteristics can be improved as much as possible without affecting the overall vehicle styling and car passability. Contribution, is an important task of the automotive aerodynamic design department.

The automobile front spoiler in the prior art mainly has three forms: the first, the straight front spoiler at the center of the bottom of the front bumper, that is, a long strip with a certain width is arranged below the front bumper to block the air flow directly. The impact on the exposed cabin parts at the bottom; second, the arc-shaped wrap-around front spoiler at the bottom of the front bumper. This type of front spoiler is the most common, that is, the lower edge of the front bumper is extended downward to form a Plate body; third, the straight wheel front spoiler in front of the wheel, that is, a partial front spoiler with a certain width is set on the floor near the front wheel to prevent the airflow from directly impacting the high-speed rotating wheel.

For the first type of front spoiler structure, usually it can only reduce the wind resistance of vehicles with a large number of leaking parts at the bottom, but cannot reduce the wind resistance of vehicles with a flat lower body, and the front spoiler is perpendicular to the direction of incoming flow velocity. The front high-speed airflow directly hits the front spoiler, causing the front spoiler body to bear greater air resistance. At the same time, the airflow can directly impact the wheels, resulting in excessive wind resistance and wind noise at the wheels. For the second type of front spoiler structure, it is also only suitable for models with a large number of leaking parts at the bottom, and when the width of the front spoiler is small, the effect of rectifying and reducing the airflow under the vehicle is not obvious; the width of the front spoiler When it is larger, it can significantly reduce the impact of the airflow on the wheels and reduce the flow of air flowing through the bottom of the car, but it will also reduce the approach angle of the car, which will have a significant adverse effect on the passability, and will also affect the appearance of the car. For the third type of front spoiler structure, because it is arranged near the front wheels, it can reduce the amount of air entering the wheel cavity from the front, and avoid the impact of the air flow on the high-speed rotating wheels, reducing the wind resistance in the wheel area, but this structure does not It cannot prevent the airflow from flowing into the wheel cavity from the side, nor can it guide the airflow in the cabin, which is not conducive to reducing the wind resistance in the lower body and rear area.

To sum up, at present, the wind resistance reduction principle of various front spoilers is to prevent the front flow from directly impacting the leaking parts (such as tires, car body parts under the cabin), that is, to design a baffle in front of the leaking parts, so that the front flow first It hits the baffle to reduce the airflow speed, avoiding the high-speed airflow directly impacting the leaking parts, thereby reducing the wind resistance. However, when this type of front spoiler is impacted by the airflow, the front spoiler body will also produce greater air resistance and aerodynamic noise. When the air resistance increased by the front spoiler body is greater than the resistance of the airflow directly hitting the leaking parts, the Type front spoiler will not reduce wind resistance. At the same time, it is difficult for this type of front spoiler to control the direction of air flow behind the front spoiler, which is not conducive to wider and more effective vehicle wind resistance optimization.

Contents of the invention

The technical problem to be solved by the present invention is to solve the problem that when the existing front spoiler prevents the air flow from impacting the leaking parts, the front spoiler body will generate relatively large wind resistance, and it is difficult to control the direction of air flow behind the front spoiler The invention provides a front spoiler and an automobile front deflector system.

The technical solution adopted by the present invention to solve the problems of the technologies described above is as follows:

A front spoiler is provided, comprising a first plate body and a second plate body, the first plate body and the second plate body are connected to form a V-shaped structure.

Further, the included angle between the first plate body and the second plate body is less than 90°.

According to the front spoiler of the present invention, the V-shaped front spoiler structure and the incoming flow in the forward direction of the car form a spoiler, which not only reduces the air resistance and aerodynamic noise of the front spoiler body, but also guides the airflow along the front The two sides of the spoiler flow smoothly to the rear of the car, reducing the energy dissipation of the air flow in the area of the wheels and the lower body, and improving the wake flow of the car, thereby reducing the wind resistance and wind noise of the whole car.

In addition, the present invention also provides an automobile front deflector system, comprising two front spoilers, a front bumper, an engine shield, a front wheel, a sub-frame and a fender, and the two front spoilers The plates are symmetrically arranged in the wheel cavity of the front wheel, the front spoiler includes a first plate body and a second plate body, the first plate body and the second plate body are connected to form a V-shaped structure, the The opening at the angle between the first plate and the second plate faces the rear of the vehicle and surrounds the front wheel, and the second plates of the two front spoilers form a "eight" shape with openings facing the front of the vehicle.

Further, the included angle between the first plate body and the second plate body is less than 90°.

Further, the connection point between the first plate and the second plate is located on the lower surface of the end of the front bumper, and the distance between the connection point and the axis of the vehicle is smaller than the inner surface of the front wheel. The distance between the sides and the axis of the car.

Further, the first plate body is arc-shaped to match the lower surface of the end of the front bumper, and extends to the bottom of the vehicle and the width direction of the vehicle along the lower surface of the front bumper to the front wheel. The outer wheel surface of the first plate body intersects the wheel center of the front wheel with the extension line of the first plate body towards the front wheel.

Further, the second plate body includes a deflector section and an extension section, the deflector section is fixedly connected to the engine fender, and one end thereof is connected to the first plate body under the end of the front bumper The other end is connected to the sub-frame with the extension section; the extension section extends along the fender and is connected to the fender.

Further, the width of the first plate extending from the lower surface of the end of the front bumper to the ground is 40-50 mm, and the width of the second plate extending from the engine guard plate to the ground is 40 mm. -50mm.

Further, the diversion section is arc-shaped, the extension section is straight, and a chamfer is provided at the connection point between the diversion section and the extension section.

Further, the distance between the first plate body and the second plate body and the ground gradually decreases from the front of the vehicle to the rear of the vehicle.

According to the automobile front diversion system of the present invention, it is designed based on the principle of diversion to reduce wind resistance. The V-shaped front spoiler located on both sides of the two front wheel chambers forms a spoiler with the incoming flow in the direction of travel, which not only reduces the It reduces the air resistance and aerodynamic noise of the front spoiler body, and can effectively guide the airflow to flow along both sides of the front spoiler, significantly reducing the wind resistance and wind noise of the vehicle, and reducing the dust pollution in the side area of the vehicle body.

Description of drawings

Fig. 1 is a schematic structural view of a front spoiler provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of an automobile front deflector system provided by an embodiment of the present invention.

The reference signs in the accompanying drawings of the description are as follows:

1. Front spoiler; 11. First board body; 12. Second board body; 121. Guide section; 122. Extended section; 2. Front bumper; 3. Engine guard; 4. Front wheel; 5 , Subframe; 6, fender.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the front spoiler 1 provided by an embodiment of the present invention includes a first plate body 11 and a second plate body 12, the first plate body 11 and the second plate body 12 are connected to form a V type structure.

According to the front spoiler 1 of the above-mentioned embodiment of the present invention, based on the principle of diversion, the structure of the V-shaped front spoiler 1 and the incoming flow in the forward direction of the car form a spoiler, which can not only reduce the wind resistance of the front spoiler 1 body, Wind noise, and can effectively guide the air flow, so that the air flow smoothly flows along the two sides of the front spoiler 1 to the rear of the car, reducing the energy dissipation of the air flow in the wheel and lower body areas, reducing the wind resistance in the wheel area, and improving the wind resistance of the wheels. At the same time, it can improve the bottom airflow, optimize the distribution of the wake of the vehicle, reduce the wind resistance and wind noise of the vehicle, and improve the economy and comfort of the vehicle.

In this embodiment, as shown in FIG. 1 , the angle between the first plate body 11 and the second plate body 12 is less than 90°, and the acute angle structure of the front spoiler 1 has a better guiding effect on the airflow.

In addition, as shown in Fig. 1 to Fig. 2, an embodiment of the present invention provides a kind of automobile front deflector system, comprises above-mentioned two front spoilers 1, front bumper 2, engine fender 3, front wheel 4. Subframe 5 and fender 6, the two front spoilers 1 are symmetrically arranged in the wheel cavity of the front wheel 4, and the front spoiler 1 includes a first plate body 11 and a second plate Body 12, the first plate body 11 and the second plate body 12 are connected to form a V-shaped structure, the angle opening between the first plate body 11 and the second plate body 12 faces the rear of the vehicle and surrounds the The front wheel 4 and the second plate body 12 of the two front spoilers 1 form a "eight" shape with openings facing the front of the vehicle.

According to the automobile front deflector system of the above-mentioned embodiments of the present invention, the front spoiler 1 is designed as a V-shaped structure based on the deflector principle and is arranged on both sides of the two front wheel 4 wheel chambers respectively, so as to be connected with the incoming flow in the direction of travel. The spoiler is formed, which not only reduces the air resistance and aerodynamic noise of the front spoiler 1 body, but also faces the rear of the vehicle and surrounds the front wheel 4 through the angled opening formed by the first plate body 11 and the second plate body 12. The second plate body 12 forms a "eight"-shaped structure with an opening facing the front of the car, which can effectively guide the air flow to the rear of the car along both sides of the front spoiler 1. On the one hand, it can reduce the amount of air flowing into the wheel cavity from the front and side, and avoid The airflow directly impacts the high-speed rotating tires, reducing the wind resistance and wind noise in the wheel area; on the other hand, through the flow guide of the second plate body 12, the extension section 122 combs the airflow inside the front wheel 4, guiding the airflow to stick to the second plate The surface of the body 12 flows toward the rear of the vehicle, reducing the lateral flow velocity of the airflow at the bottom of the cabin, reducing the energy dissipation of the turbulent airflow at the bottom, reducing the wind resistance at the bottom and improving the wake of the vehicle, thereby reducing the wind resistance and wind noise of the vehicle. At the same time, through the diversion of the first plate body 11, the airflow outside the front wheel 4 is continuously accelerated, and flows toward the rear of the vehicle against the surface of the first plate body 11, thereby increasing the airflow velocity in the area of the front wheel 4 and the fender plate. Improved dust contamination in the fender area. The automobile front deflector system adopts the front spoiler 1 arranged in a disconnected manner, and can avoid the negative influence of the front spoiler 1 on the trafficability of the automobile caused by the obvious reduction of the approach angle in the prior art.

In this embodiment, as shown in FIG. 1 , the angle between the first plate body 11 and the second plate body 12 is less than 90°, and the acute angle structure of the front spoiler 1 has a better guiding effect on the airflow.

In this embodiment, as shown in Figure 2, the connection point between the first plate body 11 and the second plate body 12 is located on the lower surface of the end of the front bumper 2, and the connection point between the connection point and the vehicle axis The distance between is less than the distance between the inner surface of the front wheel 4 and the vehicle axis. By setting the connection point between the first plate body 11 and the second plate body 12 at a position closer to the automobile axis than the inner surface of the front wheel 4, the second plate body 12 can surround the inner surface of the front wheel 4, better The airflow inside the front wheel 4 is combed and guided.

In this embodiment, as shown in Figure 2, the first plate body 11 is arc-shaped to match the lower surface of the end of the front bumper 2, and faces the automobile along the lower surface of the end of the front bumper 2. The bottom and the vehicle width direction extend to the outer wheel surface of the front wheel 4 , and the extension line of the first plate body 11 to the direction of the front wheel 4 intersects the wheel center of the front wheel 4 . The first plate body 11 is set in an arc shape matched with the lower surface of the end of the front bumper 2, which can not only reduce the impact of the airflow on the front wheel 4 and reduce the flow of air flowing through the bottom of the cabin, but also ensure a good appearance style. Through the first plate body 11 extending to the bottom of the car and the vehicle width direction to the outer wheel surface of the front wheel 4, the first plate body 11 surrounds the wheel cavity of the front wheel 4 and guides the front high-speed airflow along the outer side of the front spoiler 1 Flowing to the rear of the car can reduce the amount of air flowing into the wheel cavity from the front and sides, avoid the airflow directly impacting the high-speed rotating tires, and reduce the wind resistance and wind noise in the wheel area.

In this embodiment, as shown in FIG. 2, the second plate body 12 includes a diversion section 121 and an extension section 122. The diversion section 121 is fixedly connected to the engine fender 3, and one end thereof A plate body 11 is connected to the end lower surface of the front bumper 2, and the other end is connected to the sub-frame 5 with the extension section 122; the extension section 122 extends along the fender 6 and is connected to the The mudguard 6 is connected. The flow in the forward direction of the car is guided by the diversion section 121, and the extension section 122 combs the airflow inside the front wheel 4, guiding the airflow to flow toward the rear of the car against the surface of the second plate body 12, so that the airflow at the bottom of the cabin The lateral flow velocity is reduced to prevent the turbulent airflow at the bottom of the cabin and reduce the energy dissipation of the turbulent airflow at the bottom of the cabin, thereby reducing the wind resistance at the bottom of the cabin; at the same time, by improving the tail flow of the car, the resistance caused by the turbulent airflow at the rear is reduced, thereby reducing the wind resistance of the vehicle. wind noise.

In this embodiment, as shown in Figure 2, the width of the first plate 11 extending from the lower surface of the end of the front bumper 2 to the ground is 40-50 mm, and the second plate 12 is formed by the The width of the engine guard plate 3 extending toward the ground is 40-50mm. The width of the first plate body 11 extending from the lower surface of the end portion of the front bumper 2 to the ground direction may be the same as or different from the width of the second plate body 12 extending from the engine fender 3 to the ground direction, usually Under the circumstances, in order to simplify the process and reduce the cost, the two are set to the same value. The width of the first plate body 11 extending from the end lower surface of the front bumper 2 to the ground direction is set to 40-50 mm, and the width of the second plate body 12 extending from the engine fender 3 to the ground direction is set to 40-50 mm. When the diameter is 50mm, it can reduce the impact of the airflow on the front wheels 4 and reduce the flow of air flowing through the bottom of the cabin, and will not bring significant adverse effects on the passability, appearance and style of the car and the passability of the vehicle.

In this embodiment, as shown in FIG. 2 , the diversion section 121 is arc-shaped, the extension section 122 is linear, and chamfers are provided at the connection points between the diversion section 121 and the extension section 122 . By setting the guide section 121 as an arc and the connection point between the guide section 121 and the extension section 122 as a chamfer, the airflow can be better guided. In order to simplify the process and reduce the cost, the guide section 121 and the extension section 122 can be provided as an integral linear plate body.

In this embodiment, as shown in FIG. 2 , the distance between the first plate body 11 and the second plate body 12 and the ground gradually decreases from the front of the vehicle to the rear of the vehicle, which has a better flow guiding effect.

As can be seen from the above description, the beneficial effect brought by the present invention is that, by setting the V-shaped front spoiler 1 in the automobile front guide system, it forms a spoiler with the incoming flow in the direction of travel, which not only reduces the front spoiler 1 The air resistance and aerodynamic noise of the main body can effectively guide the airflow along the sides of the front spoiler 1 to the rear. On the one hand, it can reduce the amount of air flowing into the wheel cavity from the front and side, and avoid the direct impact of the airflow on the high-speed rotating wheel. Tires to reduce wind resistance and wind noise in the wheel area. On the other hand, through the diversion of the second plate body 12, the extension section 122 combs the airflow inside the front wheel 4, and guides the airflow to flow toward the rear of the vehicle against the surface of the second plate body 12, reducing the lateral flow velocity of the airflow at the bottom of the cabin , reduce the energy dissipation of turbulent airflow at the bottom, and improve the tail flow of the car while reducing the wind resistance at the bottom, thereby reducing the wind resistance and wind noise of the whole vehicle. At the same time, through the diversion of the first plate body 11, the airflow outside the front wheel 4 is continuously accelerated, and flows toward the rear of the vehicle against the surface of the first plate body 11, thereby increasing the airflow velocity in the area of the front wheel 4 and the fender plate. Improved dust contamination in the fender area.

The above disclosures are only preferred embodiments of the present invention, and certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (10)

1. A front spoiler, characterized by comprising a first plate body and a second plate body, the first plate body and the second plate body are connected to form a V-shaped structure. 2 . The front spoiler according to claim 1 , wherein the angle between the first plate body and the second plate body is less than 90°. 3. A kind of automobile front deflector system, it is characterized in that, comprise two front spoilers, front bumper, engine guard plate, front wheel, sub-frame and fender, described two front spoilers Symmetrically arranged in the wheel cavity of the front wheel, the front spoiler includes a first plate body and a second plate body, the first plate body and the second plate body are connected to form a V-shaped structure, the first plate body The opening at the angle between the first plate and the second plate faces the rear of the vehicle and surrounds the front wheels, and the second plates of the two front spoilers form a "eight" shape with openings facing the front of the vehicle. 4 . The air guiding system at the front of the automobile according to claim 3 , wherein the included angle between the first plate body and the second plate body is less than 90°. 5. The automobile front air deflector system according to claim 3, characterized in that, the connection point between the first board and the second board is located at the end lower surface of the front bumper, and the connection The distance between the point and the axis of the vehicle is smaller than the distance between the inner side of the front wheel and the axis of the vehicle. 6. The automobile front air deflector system according to claim 3, characterized in that, the first plate body is in an arc shape matched with the end lower surface of the front bumper, and runs along the front of the front bumper. The lower surface of the end portion of the first plate extends to the outer wheel surface of the front wheel toward the bottom of the car and in the width direction of the car, and the extension line of the first plate body to the direction of the front wheel intersects with the wheel center of the front wheel. 7. The automobile front deflector system according to claim 6, wherein the second plate body comprises a deflector section and an extension section, the deflector section is fixedly connected to the engine fender, and one end thereof The first plate body is connected to the lower surface of the end of the front bumper, and the other end is connected to the sub-frame with the extension section; the extension section extends along the fender and is connected to the fender Mudboard connection. 8. The automobile front air deflector system according to claim 7, characterized in that, the width of the first plate extending from the lower surface of the end of the front bumper to the ground is 40-50 mm, and the first plate body is 40-50 mm wide. The width of the second plate extending from the engine guard plate to the ground is 40-50 mm. 9. The vehicle front diversion system according to claim 7, characterized in that, the diversion section is arc-shaped, the extension section is straight, and the connection point between the diversion section and the extension section There are chamfers. 10. The automobile front air guide system according to any one of claims 3-9, characterized in that the distance between the first plate body and the second plate body and the ground gradually increases from the front to the rear of the vehicle. decrease.