KR0153194B1 - A front body structure of a car - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front body structure of an automobile, and in particular, an upper side is bonded to an outer side of a suspension housing upper, and a lower side is attached to a suspension housing lower joined to an upper side of a front frame outer and an inner, and one side of the suspension housing upper. An apron upper reinforcement plate and an apron side reinforcement plate, a wheel apron bonded to the apron upper reinforcement plate on the upper side and the lower side to the outside of the front frame outer, and a first cross member joined to the inside of the first cross member front. Therefore, the rigidity is improved, and thus the deformation of the vehicle body is minimized during frontal collision as the rigidity is improved, and as the size of parts is reduced and the number of parts is simplified, assemblability is improved, and durability is more excellent. It works.

Description

Front body structure of car

The present invention relates to a body structure of an automobile, and more particularly, an automobile that can minimize deformation of the front body during a frontal collision of the vehicle by increasing the coupling rigidity by changing a coupling structure and a shape of a predetermined position in the front body of the automobile. Relates to the front body structure.

(Conventional technology)

In general, the car's components can be divided into chassis and body. The body is made up of a cabin and a loading box, and is a part for carrying a person or baggage, which is equivalent to the exterior of a car.

The chassis refers to a part of the vehicle excluding the body part, and the chassis frame corresponding to the skeleton of the vehicle is provided with all the devices necessary for driving such as an engine and can be driven only by the chassis.

On the other hand, small and medium-sized cars do not use the chassis frame, and are manufactured to give the body the strength (destructive strength, unbreakable property) and rigidity (the property that is not deformed when external force is applied). The form of mounting a power transmission device etc. may be used. In this way, if the body itself is manufactured to be durable and structured to withstand load or impact, the frame can be omitted, and the weight and floor can be lowered. To this end, as shown in FIG. 1, the body is manufactured in a box shape to distribute external force throughout the body, so that the force can be transmitted to the whole body. In addition, a small frame is coupled to a portion where external force is concentrated, such as a suspension device or an engine mounting portion, and the force is distributed to the body through the frame.

Here, if the body is divided into a front body and a rear body, the front body is attached to the engine, front wheel suspension, radiator, steering gear box and the like and has various rigidities. In addition, the most important point in design is to absorb the shock and to protect the passengers in the room. The rear body varies in shape depending on the shape of the sedan, hatchback and wagon.

In such a body, a conventional front body structure will be briefly described with reference to FIGS. 1 to 4 as follows.

An apron upper reinforcement plate 4 and an apron side reinforcement plate 3 are formed on the front body of the vehicle, that is, the front left and right sides of the body, respectively, and in the foremost front, the apron upper reinforcement plate 4 and the apron side reinforcement plate. In (3), the shroud upper member SU and the first cross member upper 9a are coupled in a ladder shape in the transverse direction, and in the rearmost part, the dash lower panel DL is also formed in the transverse direction.

An upper end of the wheel apron 1 is joined to the front outer side of the apron side reinforcement plate 3 by welding, and a lower end of the suspension housing upper 2 is welded to the rear inner side of the wheel apron 1. Are combined by

As shown in FIG. 2, the apron side reinforcement plate 3 and the apron upper reinforcement plate 4 are further coupled with a reinforcement plate 5 at the bottom thereof, and the apron side reinforcement plate 3 and the apron upper reinforcement plate ( 4) is supported and coupled.

The suspension housing upper 2 is equipped with a front suspension 8. Upper ends of the front frame outer 7 and the front frame inner 6 are joined to each other by the lower portion inside the wheel aprons 1 by welding.

And, as described above, the first cross member upper 9a and the first cross member lower 9b in the transverse direction of the apron side reinforcement plate 3 and the apron upper reinforcement plate 4 are reinforced plates 9c. ) Is coupled as shown in FIG. 4, and the engine mount member E is fixed to the lower side of the first cross member lower 9b so that the engine can be mounted.

However, the structure of the conventional vehicle front body configured as described above simply supports the apron side reinforcement plate and the apron upper reinforcement plate by connecting the reinforcement plate, and the front end of the front frame inner and the front frame outer which are relatively heavy at the bottom of the apron are simple. Welded and the upper part of the wheel apron is simply welded to the lower end of the suspension housing upper, so that its rigidity is very weak. There was this.

(Summary of invention)

Accordingly, the present invention is invented to solve the problems of the prior art as described above, an object of the present invention is to improve the bonding rigidity to a predetermined position of the front body to minimize the deformation of the front body during a collision front of the vehicle To provide a body structure.

In order to achieve the above object, the present invention, the apron upper reinforcement plate and the apron side reinforcement plate is joined to the body front left and right of the vehicle, respectively; A shroud upper member and a first cross member front are joined to the front ends of the apron upper reinforcement plate and the apron side reinforcement plate in a transverse direction; A dash lower panel is joined to the other end of the apron upper reinforcement plate and the apron side reinforcement plate in a yellow direction; A front frame outer and inner extend from the dash lower panel to the first cross member front and are coupled to the first cross member front with a tie-down hook interposed therebetween; A suspension housing upper is horizontally installed at the rear of each of the apron upper reinforcement plates; In a front body structure of a vehicle in which a suspension housing lower and a wheel apron extend from the apron upper reinforcement plate to the front frame outer and inner, the lower ends of the suspension housing lower are joined in two rows to the front frame inner and outer, A shroud center stay is further coupled in a vertical direction between the shroud upper member and the first cross member front, and one side of the shroud upper member and the first cross member front is further interposed with a shroud side panel on the left and right sides. It is characterized in that it is joined to the tip of the wheel apron.

In this way, the coupling rigidity between the predetermined location, that is, the suspension housing lower and the front frame outer and inner, the wheel apron and the shroud upper member, the shroud upper member and the shroud center stay is further improved, thereby minimizing the deformation of the front body during frontal collision. will be.

(Example)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 5 to 10.

In the drawing, the upper side of the suspension housing upper 11 is joined to the upper side of the suspension housing lower 10, and the apron upper reinforcement plate 12 is bonded and fixed to the other side of the suspension housing upper 11, and the apron upper reinforcement is The apron side reinforcement board 13 is joined and fixed to the board 12.

In addition, the front frame outer and inner 14 and 15 are joined to and fixed to the lower side of the suspension housing lower 10, that is, to the first cross member front 17 to be described below in the dash lower panel DL. On one side of the apron lower 10 is a wheel apron 16 is joined to the upper apron upper reinforcement plate 12, the lower end is bonded to the upper side of the front frame outer 14.

On the other hand, as shown in FIG. 8, the wheel apron 16 joined to the upper side of the first cross member front 17 is located in front of the body.

On the other hand, as shown in FIG. 8, the first cross member front 17 and the first cross member rear 18 are joined to the front of the body.

In addition, a shroud upper member 19 is fixedly installed on an upper side of the first cross member front 17, and a shroud center stay 20 is vertically installed therebetween, and on both sides of the shroud upper member 19. The shroud side panel 21 is fixed, and a tie down hook 22 is joined to and fixed to the front end of the front frame outer 14, and the first cross member front 17 mounts a radiator and a condenser. The support bracket 23 is attached.

The body structure of the vehicle according to the present invention configured as described above is the suspension housing upper 11 is bonded to the suspension housing lower 10 and the wheel apron 16, the suspension housing lower 10 and the front frame outer and inner 14 15 is welded in two rows, the upper side of the suspension housing lower 10 is joined to the upper side of the suspension housing upper 11, and the apron upper reinforcement plate 12 and the apron side reinforcement plate 13 are joined. As the joints are opposed to each other, the deformation of the body is minimized during the frontal collision.

Therefore, according to the present invention, the front stiffness of the front body is further improved by stiffening the predetermined rigidity between the front body, that is, the suspension housing lower and the front frame outer and inner, the wheel apron and the shroud upper member, the shroud upper member and the shroud center stay. The deformation of the body is minimized.

As described above, the present invention has been illustrated and described with respect to one embodiment, but is not limited thereto, and one having ordinary skill in the art to which the present invention pertains should be within the technical spirit of the present invention described in the claims below. If so, various changes could be made.

1 is a perspective view showing a front body structure of a conventional vehicle.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B in FIG.

4 is a cross-sectional view taken along the line C-C in FIG.

5 is a perspective view showing a front body structure of a vehicle according to the present invention.

6 is a cross-sectional view taken along the line D-D of FIG.

7 is a cross-sectional view taken along the line E-E of FIG.

8 is a cross-sectional view taken along the line F-F of FIG.

9 is an exploded perspective view of main parts of the present invention.

10 is an exploded perspective view of main parts of the present invention.

* Explanation of symbols for main parts of the drawings

10: suspension housing lower 11: suspension housing upper

12: apron upper gusset 13: apron side gusset

14: front frame outer 15: front frame inner

16: wheel apron 17: the first cross member front

18: First cross member rear

Claims (1)

The apron upper reinforcement plate and the apron side reinforcement plate are joined to the body front left and right sides, respectively, and are extended; A shroud upper member and a first cross member front are joined to the front ends of the apron upper reinforcement plate and the apron side reinforcement plate in a transverse direction; A dash lower panel is joined to the other end of the apron upper reinforcement plate and the apron side reinforcement plate in a yellow direction; A front frame outer and inner extend from the dash lower panel to the first cross member front and are coupled to the first cross member front with a tie-down hook interposed therebetween; A suspension housing upper is horizontally installed at the rear of each of the apron upper reinforcement plates; In a front body structure of a vehicle in which a suspension housing lower and a wheel apron extend from the apron upper reinforcement plate to the front frame outer and inner, the lower ends of the suspension housing aur are joined in two rows to the front frame inner and outer, A shroud center stay is further coupled in a vertical direction between the shroud upper member and the first cross member front, and one side of the shroud upper member and the first cross member front is further provided with a shroud side panel interposed therebetween. Front body structure of a vehicle, characterized in that it is joined to the tip of the wheel apron.