CN201494511U - car fender - Google Patents

Abstract

The utility model provides an upper baffle on the front wall of an automobile, which belongs to the technical field of machinery. It solves the technical problems existing in the existing automobile pedestrian protection device that it cannot effectively protect the pedestrian's head in a collision and has a complex structure. The upper baffle of the front wall of the automobile is in a sheet structure. The upper baffle of the front wall is composed of a crushing part, a reinforcement part and a connecting part. On both sides of the structure, the crushing part, the reinforcing part and the connecting part are of an integrated structure, and the rigidity of the reinforcing part is greater than that of the crushing part. The upper baffle plate of the front wall of the automobile has reasonable design and simple structure, and effectively protects the life safety of pedestrians.

Description

car fender

technical field

The utility model belongs to the technical field of machinery, and relates to a front wall upper baffle, in particular to an automobile front wall upper baffle.

Background technique

In today's society, the popularity of cars is increasing, and there are all kinds of cars on the road. As the number of cars increases, so does the number of collisions with pedestrians. Generally, after the pedestrian is hit by the front wall of the car (including the front bumper) for the first time, the pedestrian turns over to the hood, and then collides with hard objects such as the front windshield, wiper, and hood for the second time. For the pedestrian's head, the injuries received are mainly concentrated in the collision with the front windshield during the secondary collision.

At present, various automobile manufacturers have many methods for the protection of the first collision, and the technical solutions are relatively mature, but there are not many protections for the second collision. Most cars do not take into account the protection of the pedestrian's head, and the injury value exceeds the standard in the European pedestrian head crash test, so they cannot be exported to Europe. Therefore how to effectively protect the head of pedestrians becomes an important issue when automobiles collide with pedestrians.

In the field of secondary collision protection, some manufacturers have also done some explorations, such as the disclosed pedestrian protection device of (CN1931638A), comprising a control unit, an air source and an air bag, the control unit is electrically connected with the air source, and the air source is connected with the air source. The airbags are connected, and the side of the engine hood near the front windshield is connected to the body. When the airbag is not unfolded, it is folded and placed in the hood near the side of the front windshield. When unfolded, the airbag is flat on the front windshield. above, and a portion of the deployed air bag is located under and supports the open hood.

After an accident, the air bag is inflated and opened, and the head of the pedestrian is cushioned by the air bag in front of the windshield to reduce the impact of the impact and achieve the purpose of protecting the head. However, the structure is complicated, and many parts are involved, including the disposable air bag and the control unit for controlling the function of the device, and the cost is very high. Moreover, after connecting the circuit of the air source through the control unit, the air source generates gas to fill the air bag, and then the head of the pedestrian can be effectively protected only after the air pressure in the air bag reaches a certain pressure. In this way, the reaction in the middle It takes a long time to provide protection for pedestrians in time, and the safety is relatively poor.

Contents of the invention

The purpose of the utility model is to solve the above-mentioned problems existing in the prior art, and provide a car cowl upper baffle plate which has a simple structure and can effectively protect pedestrians' heads.

The purpose of this utility model can be achieved through the following technical solutions: A car cowl upper baffle, which has a sheet structure, is characterized in that the cowl upper baffle is composed of a crushing part, a reinforcing part and a connecting part , the reinforcing part is located in the middle of the cowl upper baffle, the crushing part and the connecting part are located on both sides of the reinforcing part, the crushing part, the reinforcing part and the connecting part are an integrated structure, and the reinforcing The stiffness of the part is greater than that of the crush part.

The front wall upper baffle is set on the inner side of the lower end of the front windshield of the car. When an accident occurs, the pedestrian is hit on the engine cover and slides on it, and the head of the pedestrian collides with the front windshield of the car. At this time, it is used to The front wall upper baffle supporting the front windshield is affected by the impact force, and the crushed part on it is rapidly deformed. The front windshield moves backward for a certain distance along the direction of the pedestrian's head movement During the process, the head of the pedestrian is cushioned, the acceleration of the head is reduced, and the injury of the head in the accident is reduced. A reinforcing part is arranged behind the crushing part so that the impact stress of the crushing part is more concentrated, so that the crushing deformation is more complete, and the above-mentioned crushing deformation is limited within a certain range.

In the above-mentioned upper fender of the front wall of the automobile, the upper fender of the front wall is made of an integral metal plate. Generally, the sheet metal of a car is mainly formed by stamping, and the use of an integrated metal plate is more convenient for processing and manufacturing, and makes the cowl upper baffle have a certain rigidity.

In the above automobile cowl upper fender, the crushed portion is formed by bending the cowl upper fender along a vertical line of its central axis. After a region of the cowl top panel is bent, it is easy to crush the region under the impact pressure perpendicular to the crease on the curved surface.

In the above-mentioned upper fender of the front wall of the automobile, the section of the crushed part is U-shaped. When the impact pressure acts on the sides of the U-shape, it is easy to crush the U-shape area.

In the above-mentioned upper panel of the front wall of the automobile, the reinforcing part includes several transverse reinforcing ribs perpendicular to the central axis and several longitudinal reinforcing ribs parallel to the central axis, the transverse reinforcing ribs are located between the longitudinal reinforcing ribs and between crushing parts. The transverse ribs and longitudinal ribs increase the rigidity of the reinforced part, so that the crushed part can be crushed quickly and completely in the event of a collision.

In the above-mentioned upper panel of the front wall of the automobile, the transverse reinforcing rib is formed by a partial protrusion of the upper panel of the front panel or is formed by welding a metal piece on the upper panel of the upper panel of the cowl. The transverse reinforcing rib strengthens the rigidity of the area where it is located so that it cannot be crushed by the impact pressure, and also makes the impact pressure more concentrated on the above-mentioned crushed part, so that the crushed deformation of the crushed part is more complete.

In the above-mentioned upper panel of the front wall of the automobile, the longitudinal reinforcing rib is formed by partially pressing the upper panel of the cowl into a pit, or is formed by welding a metal piece on the upper panel of the cowl. The longitudinal ribs supplement the strength of the transverse ribs to ensure the rigidity of the area.

In the above-mentioned upper panel of the front wall of the automobile, the connecting portion includes several fixing holes arranged on the upper panel of the front panel.

Compared with the prior art, the front wall upper baffle of the automobile has a reasonable design and a simple structure. After the front windshield collides with the pedestrian's head, the crushing part can make the front windshield of the automobile collide with its own crushing effect. The glass moves backwards to slow down the acceleration of the head of the pedestrian and effectively protect the life of the pedestrian; a horizontal rib and several longitudinal ribs are designed behind the crushing part to increase the rigidity of the reinforcing part so that the crushing part can be crushed. The crushed part can be crushed quickly and completely when colliding, and the above-mentioned crushing deformation can be limited within a certain range.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the upper baffle on the cowl of the automobile.

Fig. 2 is a schematic top view of the upper baffle on the cowl of the automobile.

Fig. 3 is a schematic cross-sectional view of A-A in Fig. 2 .

Fig. 4 is a partial assembly plan view of the front wall upper baffle of the automobile in the automobile.

Fig. 5 is a B-B sectional view of Fig. 4 .

Fig. 6 is a partial sectional assembly view of the front wall part in the automobile.

In the figure, 1, the upper baffle of the front wall; 2, the crushed part; 3, the reinforced part; 3a, the transverse rib; 3b, the longitudinal rib; 4, the front windshield; 5, the support; 6, the engine cover ; 7, the upper part of the front wall assembly; 8, the front wall assembly; 9, the connecting part.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in FIG. 6 , the front wall part of the automobile includes a front wall upper assembly 7 and a front wall assembly 8 , and the front wall upper assembly 7 includes a support member 5 and a front wall upper baffle 1 . As shown in FIGS. 4 and 5 , the cowl top baffle 1 is located inside the lower end of the front windshield 4 and is close to the intersection of the front windshield 4 and the engine cover 6 . The front wall upper baffle 1 is connected to the front windshield 4 through the support member 5 , and supports the front windshield 4 on the front wall assembly 8 . The front wall upper panel 1 is provided with a crushing part 2 which can be crushed quickly and a reinforcing part 3 which can maintain its own shape.

Specifically, as shown in Figure 1, the cowl upper fender 1 is made of an integrated metal plate, which is in a sheet structure. Generally, the sheet metal of a car is mainly formed by stamping, and the integrated metal plate is more convenient to process. Manufactured, and make this cowl top baffle 1 have certain rigidity.

As shown in Figure 2, the crushing portion 2 is formed by bending the cowl upper baffle 1. The principle is that after a region of the cowl upper baffle 1 is bent, the impact pressure on the curved surface will easily Area crushed. The section of the crushing part 2 is U-shaped. When the impact pressure acts on the sides of the U-shape, it is easy to crush the U-shape area.

As shown in Figure 3, the reinforcing part 3 is located on the side of the crushing part 2 away from the front windshield 4, and the reinforcing part 3 includes a transverse reinforcing rib 3a perpendicular to the collision direction and five longitudinal reinforcing ribs 3b parallel to the collision direction. The rib 3 a is located between the longitudinal rib 3 b and the crush 2 . The transverse ribs 3a and the longitudinal ribs 3b increase the rigidity of the reinforced part 3 so that the crushed part 2 can be crushed quickly and completely in the event of a collision. In this embodiment, the transverse reinforcing rib 3a is formed by a partial protrusion of the cowl top baffle 1 , as another solution, it can also be formed by welding a metal piece on the top of the cowl top baffle 1 . In this embodiment, the longitudinal reinforcing rib 3b is formed by partially pressing the cowl top baffle 1 into a pit. As another solution, it can also be formed by welding a metal piece on the cowl top baffle 1 . The longitudinal reinforcing ribs 3b play a role of supplementing the strength of the transverse reinforcing ribs 3a, and further ensure the rigidity of the region where it is located.

The connecting portion 9 is located on the side of the reinforcing portion 3 away from the front windshield 4, and the connecting portion 9 includes a number of fixing holes arranged on the cowl upper fender 1, and the cowl upper fender 1 is connected with the cowl assembly through the connecting portion 9. 8 threaded connection.

After the accident took place, the pedestrian was bumped into the engine cover 6 and slid on it, and the head of the pedestrian collided with the front windshield 4 of the car, and at this moment the cowl upper baffle plate 1 for supporting the front windshield 4 was damaged The effect of the impact force makes the crushing part 2 above it crush and deform rapidly. The front windshield 4 moves backward for a certain distance along the moving direction of the pedestrian's head, so that the pedestrian's head is buffered during the movement, reducing the acceleration of the head and reducing the injury of the head in an accident. Lateral ribs 3a and longitudinal ribs 3b are designed behind the crushing part 2 to increase the rigidity of the reinforcing part 3, so that the crushing part 2 can be crushed quickly and completely when colliding, and the above-mentioned crushing Deformation is limited within a certain range.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (8)

1. A car cowl upper baffle, in a sheet structure, characterized in that, the cowl upper baffle (1) is composed of a crushing part (2), a reinforcing part (3) and a connecting part (9) Composition, the reinforcement part (3) is located in the middle of the dash panel (1), the crush part (2) and the connection part (9) are located on both sides of the reinforcement part (3), the crush The part (2), the reinforcing part (3) and the connecting part (9) are of an integral structure, and the rigidity of the reinforcing part (3) is greater than that of the crushing part (2). 2. The upper panel of the cowl of the automobile according to claim 1, characterized in that, the upper panel of the cowl (1) is made of an integral metal plate. 3. The upper panel of the automobile cowl according to claim 2, characterized in that, the crushed part (2) is formed by bending the upper panel of the cowl (1) along the vertical line of its own central axis . 4. The cowl top panel of an automobile according to claim 1, 2 or 3, characterized in that the section of the crushed portion (2) is U-shaped. 5. The upper panel of the front wall of the automobile according to claim 4, characterized in that, the reinforcing part (3) includes several transverse reinforcing ribs (3a) perpendicular to the above-mentioned central axis and several transverse ribs (3a) perpendicular to the central axis Parallel longitudinal ribs (3b), the transverse ribs (3a) are located between the longitudinal ribs (3b) and the crushed part (2). 6. The upper panel of the front wall of the automobile according to claim 5, characterized in that, the transverse reinforcing rib (3a) is formed by a local protrusion of the upper panel of the cowl (1) or is welded on the front panel by a metal piece Formed on the top of the upper baffle (1). 7. The upper panel of the front wall of the automobile according to claim 6, characterized in that, the longitudinal reinforcing rib (3b) is formed by partially pressing the upper panel of the cowl (1) into a pit or welded by metal parts Formed on the cowl top panel (1). 8. The upper panel of the cowl of the automobile according to claim 7, characterized in that, the connecting portion (9) includes several fixing holes arranged on the upper panel of the cowl (1).

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