Air dam structure of automobile bumper

Abstract

The automobile bumper air dam structure comprises an air dam body, the air dam body comprises a middle connecting part, two cambered surface parts, side plates and a bottom reinforcing part, the cambered surface parts are arranged on the middle connecting part, and the cambered surface parts protrude in the direction away from a tire; the side plate is arranged on the cambered surface part; the bottom reinforcing part is arranged at the bottom of the cambered surface part. In the running process of the automobile, both the middle connecting part and the cambered surface part can effectively reduce airflow entering the automobile bottom. The side plates and the bottom reinforcing part can effectively improve the structural strength of the air dam main body, so that the air dam main body does not deform under large wind resistance. According to the automobile air dam, the wind resistance coefficient can be effectively reduced through the two cambered surface parts, the approach angle C value of an automobile cannot be affected by the air dam body, namely, the approach angle C of the automobile cannot be affected by the air dam body, the good trafficability of the automobile is kept, and the attractiveness of the automobile is further improved through the arrangement of the two cambered surface parts.

Description

Technical Field

[0001] This application relates to the field of bumper air dam technology, and in particular to a car bumper air dam structure. Background Technology

[0002] The air dam is connected to the front bumper of the car, forming an air dam that blocks airflow. This can reduce the amount of airflow entering under the car, and prevent excessive airflow under the car from causing upward force, weakening the rear wheel grip, and affecting the overall airflow performance of the vehicle.

[0003] In recent years, with increasingly stringent requirements for fuel consumption and emission standards, the aerodynamic performance of automobiles has become increasingly important, and the drag coefficient of the entire vehicle is required to be lower. However, most existing air dams are elongated structures, and from a fluid dynamics perspective, the ability of elongated air dams to reduce the drag coefficient is limited.

[0004] Therefore, it is necessary to propose an air dam structure for automobile bumpers to minimize the airflow entering the underside of the vehicle and further reduce the overall drag coefficient of the vehicle, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides an air dam structure for a car bumper, which aims to solve the problem that most existing air dams in the prior art are long strip structures, and from a fluid dynamics perspective, the ability of long strip structure air dams to reduce the drag coefficient is limited.

[0006] To achieve the above objectives, this application proposes an air dam structure for a car bumper, including an air dam body installed on the front bumper of a car. The car is equipped with tires. The air dam body includes: a middle connecting part; two arc-shaped parts disposed on the middle connecting part and protruding in a direction away from the tires; side plates disposed on the arc-shaped parts; and a bottom reinforcing part disposed at the bottom of the arc-shaped parts.

[0007] In some embodiments, the device further includes: a mounting bracket disposed on the air dam body; a latch disposed on the mounting bracket, the latch having a snap-fit ​​surface, and an elongated hole for the latch to pass through on the front bumper.

[0008] In some embodiments, the device further includes a reinforcing member disposed near the intermediate connecting portion on the air dam body.

[0009] In some embodiments, the device further includes: a connecting hole disposed in the reinforcing member; a fastener disposed in the connecting hole; a spring nut disposed in the reinforcing member, the spring nut having a through hole for the fastener to pass through; and an elastic sheet disposed adjacent to the through hole in the spring nut, the elastic sheet partially contacting the fastener.

[0010] In some embodiments, the reinforcement further includes a reinforcing rib disposed on the reinforcing member.

[0011] In some embodiments, the air dam body further includes: a recessed portion disposed on the arc-shaped portion; and a mounting plate connected to the recessed portion.

[0012] This application proposes a car bumper air dam structure, including an air dam body. The air dam body includes: a central connecting part, two curved surfaces, side plates, and a bottom reinforcing part. The curved surfaces are located at the central connecting part and protrude away from the tires. The side plates are located at the curved surfaces, and the bottom reinforcing part is located at the bottom of the curved surfaces. During vehicle operation, both the central connecting part and the curved surfaces effectively reduce airflow entering the underside of the vehicle. The side plates and bottom reinforcing part effectively enhance the structural strength of the air dam body, preventing deformation under high wind resistance. The two curved surfaces effectively reduce the drag coefficient, and the vehicle's approach angle C is not affected by the air dam body, maintaining good vehicle passability. The two curved surfaces also improve the vehicle's aesthetics. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a three-dimensional structural diagram of the main body of the air dam from one perspective in one embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the structure of the air dam body installed on the front bumper in one embodiment of this application;

[0016] Figure 3 for Figure 2 Sectional view of section AA;

[0017] Figure 4 This is a three-dimensional structural diagram of the main body of the air dam from another perspective in one embodiment of this application;

[0018] Figure 5 for Figure 4 Enlarged view of part B in the middle;

[0019] Figure 6 This is a schematic diagram of the front structure of a car in one embodiment of this application.

[0020] Air dam body 1, intermediate connecting part 101, arc surface 102, bottom reinforcing part 103, concave part 104, side plate 105, mounting plate 106, reinforcing part 2, front bumper 3, tire 4, latch 5, elongated hole 6, spring nut 7, fastener 8, elastic sheet 9, mounting bracket 10, automobile 11. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0025] See Figure 1 , Figure 2 and Figure 6As shown, this application proposes an air dam structure for a car bumper, including an air dam body 1, which is installed on the front bumper 3 of a car 11. The car 11 is equipped with tires 4. The air dam body 1 includes: a middle connecting part 101; two arc-shaped parts 102, which are disposed on the middle connecting part 101 and protrude in a direction away from the tires 4; a side plate 105, which is disposed on the arc-shaped parts 102; and a bottom reinforcing part 103, which is disposed at the bottom of the arc-shaped parts 102.

[0026] The air dam body 1 is the structural foundation of the car bumper air dam structure, and all other structures on the car bumper air dam structure are directly or indirectly installed on the air dam body 1. The intermediate connecting part 101 serves as a windbreak and connection to minimize airflow entering the undercarriage, and it can connect the two curved surfaces 102. The curved surfaces 102 are the core components of the car bumper air dam structure. The two curved surfaces 102 are located near the tires 4, and they can effectively reduce the drag coefficient. The side plates 105 and the bottom reinforcing part 103 are used to strengthen the structural strength of the air dam body 1.

[0027] Specifically, during the driving of the vehicle 11, both the intermediate connecting part 101 and the curved part 102 effectively reduce the airflow entering the underside of the vehicle. The side panel 105 and the bottom reinforcement part 103 effectively enhance the structural strength of the air dam body 1, ensuring it does not deform under high wind resistance. The two curved parts 102 effectively reduce the drag coefficient, and the approach angle C of the vehicle 11 is not affected by the air dam body 1, meaning the air dam body 1 does not affect the approach angle C of the vehicle 11, maintaining good passability for the vehicle 11. The design of the two curved parts 102 also contributes to improving the aesthetics of the vehicle 11.

[0028] In detail, by designing the two sides of the air dam body 1 as arc-shaped to form the arc-shaped surface 102, CFD calculations show that the drag coefficient can be effectively reduced by 0.042Cd. Furthermore, the air dam body 1 with the arc-shaped surface 102 also has a beneficial wind-blocking ability, effectively reducing the airflow entering the underside of the vehicle.

[0029] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, it further includes: a mounting bracket 10, which is disposed on the air dam body 1; the mounting bracket 10 is the structural base of the latch 5, the latch 5 is disposed on the mounting bracket 10, the latch 5 is provided with a snap-fit ​​surface, and the front bumper 3 is provided with an elongated hole 6 for the latch 5 to pass through. During the initial installation of the air dam body 1, as the latch 5 gradually extends into the elongated hole 6 of the front bumper 3, the latch 5 deforms to completely pass through the elongated hole 6. After the latch 5 has completely passed through the elongated hole 6, the latch 5 returns to its original shape and abuts against the front bumper 3 through the snap-fit ​​surface of the latch 5, thereby installing the air dam body 1 onto the front bumper 3.

[0030] See Figure 1 Figure 4 As shown, in some embodiments, a reinforcing member 2 is further included, which is disposed on the air dam body 1 near the intermediate connecting portion 101. The reinforcing member 2 is used to enhance the structural strength of the air dam body 1 at the intermediate connecting portion 101.

[0031] See Figure 4 and Figure 5 As shown, in some embodiments, the device further includes: a connecting hole disposed on the reinforcing member 2; a fastener 8 disposed on the connecting hole, preferably a screw, the diameter of the connecting hole being slightly larger than the outer diameter of the screw thread, the fastener 8 passing through the connecting hole and connecting to the front bumper 3, thereby achieving a stable connection between the reinforcing member 2 and the front bumper 3, and thus achieving a stable connection between the air dam body 1 and the front bumper 3; a spring nut 7 disposed on the reinforcing member 2, the spring nut 7 having a through hole for the fastener 8 to pass through, the spring nut 7 serving as the structural basis for the elastic plate 9; and an elastic plate 9 disposed near the through hole on the spring nut 7, the elastic plate 9 partially contacting the fastener 8. The elastic plate 9 is preferably a spring plate, the end of the elastic plate 9 away from the spring nut 7 tending to move towards the fastener 8, the friction between the elastic plate 9 and the fastener 8 locking the fastener 8, thereby improving the connection reliability between the air dam body 1 and the front bumper 3.

[0032] See Figure 4 As shown, in some embodiments, it further includes a reinforcing rib, which is disposed on the reinforcing member 2. The reinforcing rib enhances the structural strength of the reinforcing member 2.

[0033] In this embodiment, the reinforcing ribs are arranged in a mesh pattern on the leeward side of the reinforcing member 2. A triangular reinforcing plate is provided at the connection between the side plate 105 and the curved surface 102. The two right-angled sides of the reinforcing plate connect the side plate 105 and the curved surface 102 respectively, thereby enhancing the structural strength at the connection between the side plate 105 and the curved surface 102.

[0034] See Figure 4 and Figure 5As shown, in some embodiments, the air dam body 1 further includes: a recessed portion disposed on the arc-shaped portion 102, the recessed portion serving to provide an installation base; and a mounting plate 106 connected to the recessed portion. The mounting plate 106 is disposed on the end face of the recessed portion and serves as an installation platform for installing various connection structures.

[0035] In this embodiment, the mounting plate 106 can be used to install the mounting bracket 10, or to install the connecting hole and the spring nut 7. The leeward side of the arc-shaped part 102 can also be provided with a mounting protrusion. The side of the mounting protrusion away from the arc-shaped part 102 is a flat mounting surface, which can be used to install various connection structures.

[0036] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A car bumper air dam structure, characterized in that, The air dam body (1) is mounted on the front bumper (3) of a vehicle (11), the vehicle (11) being equipped with tires (4). The air dam body (1) includes: Intermediate connecting part (101); Two curved surfaces (102) are disposed on the intermediate connecting portion (101), and the curved surfaces (102) protrude in a direction away from the tire (4); Side plate (105), the side plate (105) is disposed on the arc-shaped surface (102); Bottom reinforcement (103) is provided at the bottom of the curved surface (102).

2. The automobile bumper air dam structure according to claim 1, characterized in that, Also includes: Mounting bracket (10), which is disposed on the air dam body (1); The latch (5) is provided on the mounting bracket (10), the latch (5) is provided with a snap-fit ​​surface, and the front bumper (3) is provided with an elongated hole (6) for the latch (5) to pass through.

3. The automobile bumper air dam structure according to claim 1, characterized in that, Also includes: A reinforcing member (2) is disposed on the air dam body (1) near the intermediate connecting part (101).

4. The automobile bumper air dam structure according to claim 3, characterized in that, Also includes; A connecting hole is provided in the reinforcing member (2); Fastener (8), the fastener (8) is disposed in the connecting hole; Spring nut (7), the spring nut (7) is disposed on the reinforcing member (2), the spring nut (7) is provided with a through hole for the fastener (8) to pass through; An elastic piece (9) is disposed near the through hole in the spring nut (7), and the elastic piece (9) partially contacts the fastener (8).

5. The automobile bumper air dam structure according to claim 3, characterized in that, Also includes: A reinforcing rib is provided on the reinforcing member (2).

6. The automobile bumper air dam structure according to claim 1, characterized in that, The main body of the air dam (1) also includes: A concave portion (104) is provided on the arcuate portion (102). Mounting plate (106) is connected to the recess.

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