CN204587034U - A kind of front panel structure - Google Patents

Abstract

The utility model provides a dash panel structure, which comprises a dash panel, a reinforcing crossbeam arranged in the middle area of the dash panel, a left inner reinforcing plate arranged in the left area of the dash panel, and a The inner reinforcement plate on the right side of the area; the reinforcement beam is fixedly installed on the panel surface of the dash panel facing the engine, and forms a closed cavity structure in the middle with the dash panel; the two ends of the reinforcement beam are respectively provided with The left front longitudinal beam and the right front longitudinal beam extending in the direction of one side of the engine; the left inner reinforcement plate and the right inner reinforcement plate are respectively fixedly installed on the other side panel of the dash panel where the reinforcing beam is located , and form a first side closed cavity structure with the dash panel; the middle closed cavity structure and the first side closed cavity structure are connected continuously on the dash panel. By adopting the utility model, the collision safety protection performance of the dash panel to the passenger compartment can be effectively improved, and the bending and torsional rigidity and the modulus of the whole vehicle can be effectively improved.

Description

A front wall structure

technical field

The utility model relates to the field of automobile engineering, in particular to a dash panel structure.

Background technique

In the field of automotive engineering, the dash panel and its reinforced structure are important structural parts. The impact force generated by the collision reduces the intrusion of the front panel and improves the safety performance of the passenger compartment; it forms a connection structure with the left and right front longitudinal beams to improve the bending and torsional stiffness and modal of the vehicle. At the same time, it also has the installation and sealing function for the chassis, power and electrical components. However, in the related prior art, the front wall reinforcement is usually reinforced by a reinforcement plate, but it lacks an effective transmission path for collision energy, which is not conducive to the release of collision energy.

Contents of the invention

The technical problem to be solved by the utility model is to provide a dash panel structure, which can effectively improve the collision safety protection performance of the dash panel to the passenger compartment, and can effectively improve the bending torsional stiffness and mode of the whole vehicle.

In order to solve the above-mentioned technical problems, the utility model provides a dash panel structure, which includes a dash panel, a reinforcing beam arranged in the middle area of the dash panel, a left inner reinforcing plate arranged in the left area of the dash panel and The right inner reinforcing plate is arranged on the right side of the dash panel; the reinforcing beam is fixedly installed on the panel surface of the dash panel facing the engine side, and forms a closed cavity structure in the middle with the dash panel; The two ends of the reinforcing beam are respectively provided with a left front longitudinal beam and a right front longitudinal beam extending along one side of the engine; the left inner reinforcing plate and the right inner reinforcing plate are fixedly mounted on On the other side panel of the dash panel where it is located, and form a first side closed cavity structure with the dash panel; the middle closed cavity structure and the first side closed cavity structure are in the The above-mentioned front panel is coherent.

As an improvement of the above technical solution, the two ends of the reinforcing crossbeam are closed ends, and the two ends respectively extend into the root areas of the left front side beam and the right side front side beam and connect with the left side front side beam. , The inner surface of the root of the right front longitudinal beam is fixedly connected.

As an improvement of the above technical solution, the inner side end of the left inner reinforcement panel is fixedly connected to the dash panel, and the outer side is fixedly connected to the inner panel of the left A-pillar; the inner side end of the right inner reinforcement panel is fixedly connected to the The dash panel is fixedly connected, and the outer end is fixedly connected with the right A-pillar inner panel.

As an improvement of the above technical solution, the inner side ends of the left inner reinforcement board and the right inner reinforcement board are respectively located in the root regions of the left front side beam and the right front side beam.

As an improvement of the above-mentioned technical solution, the dash panel structure further includes a left outer reinforcing plate arranged at the left area of the dash panel and a right outer reinforcing plate arranged at the right area of the dash panel; the left outer The reinforcing plate and the right side outer reinforcing plate are fixedly installed on the panel surface of the dash panel facing the engine side, and form a second side closed cavity structure with the dash panel; the closed cavity structure in the middle part and the The closed cavity structure at the second side is connected continuously on the dash panel.

As an improvement of the above technical solution, the installation positions of the left outer reinforcement board and the right outer reinforcement board correspond to the installation positions of the left inner reinforcement board and the right inner reinforcement board respectively.

As an improvement of the above technical solution, the inner end of the left outer reinforcement plate is fixedly connected to the outside of the root of the left front longitudinal beam, and the outer end is fixedly connected to the inner panel of the left A-pillar; the right outer reinforcement plate The inboard end of the A-pillar is fixedly connected to the outside of the root of the right front longitudinal beam, and the outboard end is fixedly connected to the right A-pillar inner panel.

As an improvement of the above technical solution, the height of the cavities of the left outer reinforcing plate and the right outer reinforcing plate gradually decreases from the inner end to the outer end; the cavities of the left inner reinforcing plate and the right inner reinforcing plate The height gradually increases from the medial end to the lateral end.

As an improvement of the above technical solution, reinforcing ribs are provided on the cavity surfaces of the left outer reinforcing plate and the right outer reinforcing plate.

As an improvement of the above technical solution, reinforcing ribs are provided on the cavity surfaces of the left inner reinforcing plate and the right inner reinforcing plate.

A dash panel structure implementing the utility model has the following beneficial effects compared with the prior art:

The utility model forms a coherent closed cavity structure by enclosing the front panel, the left and right inner reinforcement plates and the left and right outer reinforcement plates through the reinforced beam, which can disperse the collision energy transmitted to the root of the front longitudinal beam, The front wall can better withstand the impact force of the engine compartment due to the impact, effectively reduce the intrusion of the front wall, and improve the safety performance of the passenger compartment; the structure also forms a continuous connection with the front longitudinal beam and A-pillar The structure can effectively improve the ability of the vehicle to resist bending and torsional deformation under the action of external loads, thereby improving the bending and torsional stiffness of the vehicle, and at the same time improving the bending and torsional mode of the vehicle.

In addition, when the utility model is applied to the replacement of large-size tires in subsequent models, the left and right outer reinforcement plates can be eliminated, which provides favorable conditions for the follow-up models to continue to use the dash panel structure, and greatly reduces the design of molds, fixtures, etc. Development costs are shortened and the product development cycle is shortened.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below.

Fig. 1 is the structural representation of a kind of cowl structure of the utility model;

Fig. 2 is a structural schematic diagram of another viewing direction of the left part of the structure shown in Fig. 1, wherein the indication of the dash panel is hidden;

Fig. 3 is a front side view of the overlapping state of the reinforcing beam and the left and right front longitudinal beams;

Fig. 4 is the rear view of the overlapping state of the reinforcing beam and the left and right front longitudinal beams;

Fig. 5 is a schematic structural view of the utility model when a subsequent model uses a large-size tire.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1 to Fig. 5, an embodiment of the present utility model is a dash panel structure, which includes a dash panel 1, a reinforcing beam 2 arranged in the middle area of the dash panel 1, a 1 The left inner reinforcement panel 3 in the left area and the right inner reinforcement panel 4 arranged in the right area of the dash panel 1.

The reinforcing beam 2 of this embodiment is fixedly installed on the panel surface of the dash panel 1 facing the engine side by welding, and forms a closed cavity structure in the middle with the dash panel 1, as shown in Fig. 1, Fig. 3 and Fig. 4 , the two ends of which are closed ends, which respectively extend into the root area B of the left front side beam 7 and the right side front side beam 8 extending along the direction of the engine side, and are welded to the left side front side beam 7, The inner surface of the root of the right side front longitudinal beam 8 is fixedly connected. Such design, the one, in order to resist the intrusion of left and right side front longitudinal beams 7,8 roots to dash panel 1, the 2nd, in order to make reinforcing beam 2 reach follow-up model and continue to use. This is due to the consideration that: if the two ends are open, when the overlap is located at area A, only one side of the reinforcing beam 2 and the root of the front longitudinal beam is overlapped, which is not conducive to resisting the intrusion of the front longitudinal beam to the dash panel 1 ; When the overlapping area is located in area C, the two ends of the reinforcing beam 2 will exceed the outside of the root of the front longitudinal beam. When the tire is used, the extended part of the reinforcing beam 2 and the outer reinforcing plate will interfere with the envelope of the front tire, causing the reinforcing beam 2 to be unable to continue to use. If its two ends are closed, when the overlap is located in area A, the overlapping area between the reinforcing beam 2 and the root of the front longitudinal beam is not enough to resist the intrusion of the front longitudinal beam to the dash panel 1, which is not conducive to the improvement of the crash performance; When the overlap is located in area C and the subsequent models use large-size tires, the outer reinforcement plate can be canceled to avoid interference with the tire envelope, but the protruding part of the reinforcement beam 2 located in area C will interfere with the front tire envelope, resulting in reinforcement Beam 2 cannot be used. As shown in Fig. 5, Fig. 5 is a structural schematic view of this embodiment when the subsequent model uses large-size tires, wherein the settings of the left outer reinforcement plate and the right outer reinforcement plate are cancelled.

In this embodiment, the left inner reinforcement plate 3 and the right inner reinforcement plate 4 are fixedly installed on the panel surface of the dash panel 1 facing the passenger compartment by welding, and form a first side closed space with the dash panel 1 Cavity structure, as shown in Figure 2 and Figure 5, the inner side end of the left inner reinforcement plate 3 is welded and fixed to the dash panel 1, and its outer end is welded and fixed to the left A-pillar inner panel 9; The inner side end of the side inner reinforcing plate 4 is welded and fixed to the dash panel 1 , and its outer end is welded and fixed to the right A-pillar inner panel 10 . The inner side ends of the left inner reinforcement board 3 and the right inner reinforcement board 4 are respectively located in the root region B of the left front side beam 7 and the right front side beam 8 . Thus, the left and right inner reinforcement plates 3, 4 and the reinforcement beam 2 in this embodiment form a coherent reinforcement structure, that is, the middle closed cavity structure and the first side closed cavity structure are in the The dash panel 1 is connected continuously.

In addition, on the basis of this embodiment, it also includes a left outer reinforcement panel 5 arranged on the left side of the dash panel 1 and a right outer reinforcement panel 6 arranged on the right side of the dash panel 1; The outer reinforcing plate 5 and the right outer reinforcing plate 6 are fixedly installed on the panel surface of the dash panel 1 facing the engine by welding, and form a second side closed cavity structure with the dash panel 1, as shown in Fig. 1 and As shown in Figure 2, the inner side of the left side outer reinforcing plate 5 is welded and fixed to the outside of the root of the left front longitudinal beam 7, and the outer side is welded and fixed to the left A-pillar inner panel 9; the right side outer reinforcement The inner end of the plate 6 is welded and fixed to the outside of the root of the right front longitudinal beam 8 , and the outer end is welded and fixed to the right A-pillar inner panel 10 . Thus, the left and right side outer reinforcing plates 5, 6 and the reinforcing beam 2 in this embodiment form a coherent reinforcing structure, that is, the middle closed cavity structure and the second side closed cavity structure are in the The dash panel 1 is connected continuously.

It should be noted that, the installation positions of the left side outer reinforcement board 5 and the right side outer reinforcement board 6 correspond to the installation positions of the left side inner reinforcement board 3 and the right side inner reinforcement board 4 respectively, and are in the same position as the dash panel. 1 together to form a three-layer welded structure, so that the reinforced beam 2, the left and right outer reinforcement plates 5, 6 and the left and right inner reinforcement plates 3, 4 form a “one”-shaped reinforcement structure, that is, it is surrounded by the dash panel 1 Form a coherent closed cavity structure. Thus, through the coherent closed cavity structure, when the energy generated in frontal collision occurs along the left and right side front side beams 7 and 8 to the rear of the vehicle, when the energy is transmitted to the root of the vehicle, the energy forms a branch transmission: part of the energy is transmitted along the front The rear section of the longitudinal beam continues to be transmitted to the rear of the vehicle; part of it is transmitted along the reinforcing beam; the other part is transmitted along the outer and inner reinforcement plates to the A-pillar. This can effectively disperse the collision energy, enable the dash panel to better withstand the impact of the engine compartment due to the impact, reduce the amount of intrusion into the dash panel, and improve the safety performance of the passenger compartment. In addition, the structure forms a coherent structure with the front longitudinal beam and A-pillar, which can effectively improve the vehicle's ability to resist bending and torsional deformation under external loads, thereby improving the bending and torsional rigidity of the vehicle, and at the same time improving The role of vehicle bending and torsion modes.

More preferably, since the outer reinforcing plate is used to connect the outer surface of the root of the front longitudinal beam and the inner panel of the A-pillar, the collision energy is transmitted from the root of the front longitudinal beam to the inner panel of the A-pillar. In order to strengthen the stiffness of the connection between the front longitudinal beam and the outer reinforcement plate and improve the deformation resistance during collision, the cavity heights of the left outer reinforcement plate 5 and the right outer reinforcement plate 6 in this embodiment are along the direction of energy transmission ( That is, from the inner end to the outer end) gradually decreases. Correspondingly, the cavity heights of the left inner reinforcing plate 3 and the right inner reinforcing plate 4 of this embodiment gradually increase along the direction of energy transmission (that is, from the inner end to the outer end), so that the first side part closes the cavity The sum of the cavity heights of the structure and the second side closed cavity structure is roughly the same as a whole. This design is to consider that the collision energy can be more directly and smoothly transmitted to the surrounding area at the root of the front longitudinal beam, so as to avoid local energy concentration, thereby further reducing Its intrusion into the dash panel.

More preferably, ribs are provided on the cavity surfaces of the left outer reinforcement plate 5 and the right outer reinforcement plate 6 along the direction of energy transmission, so as to strengthen and support the roots of the left and right front longitudinal beams 7 and 8 effect.

More preferably, the cavity surfaces of the left inner reinforcement panel 3 and the right inner reinforcement panel 4 are provided with reinforcing ribs along the direction of energy transmission, so as to strengthen and support the inner panels 9 and 10 of the left and right A-pillars. effect.

The above disclosures are only preferred embodiments of the present utility model, and of course the scope of rights of the present utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model are still covered by the utility model. scope.

Claims (10)

1. a front panel structure, is characterized in that, brace panel in the right side comprise front panel, be arranged at the deep beam of front panel central region, being arranged at brace panel in the left side of front panel left field and being arranged at front panel right side area; Described deep beam is fixedly mounted on described front panel towards on the plate face of driving engine side, and forms middle part enclosed cavity structure with described front panel; The two ends of described deep beam are respectively arranged with the left side front side member and right side front side member that extend along direction, driving engine side; In described left side, brace panel and brace panel in right side are fixedly mounted in another lateral plates of the front panel at relative described deep beam place, and form the first sidepiece enclosed cavity structure with described front panel; Described middle part enclosed cavity structure and described first sidepiece enclosed cavity structure are passed through in succession at described front panel uplink.

2. a kind of front panel structure as claimed in claim 1, it is characterized in that, the two ends of described deep beam are closed end, its two ends extend respectively described left side front side member, right side front side member root area in and be fixedly connected with the root inner face of described left side front side member, right side front side member.

3. a kind of front panel structure as claimed in claim 1, is characterized in that, in described left side, the medial extremity of brace panel is fixedly connected with described front panel, and external side end is fixedly connected with left side A post inner panel; In described right side, the medial extremity of brace panel is fixedly connected with described front panel, and external side end is fixedly connected with right side A post inner panel.

4. a kind of front panel structure as claimed in claim 3, is characterized in that, in described left side, in brace panel and right side, the medial extremity of brace panel lays respectively in the root area of described left side front side member and right side front side member.

5. a kind of front panel structure as claimed in claim 1, is characterized in that, also comprises the left side external reinforcing plate for car being arranged at front panel left field and the right side external reinforcing plate for car being arranged at front panel right side area; Described left side external reinforcing plate for car and right side external reinforcing plate for car are fixedly mounted on described front panel towards on the plate face of driving engine side, and form the second sidepiece enclosed cavity structure with described front panel; Described middle part enclosed cavity structure and described second sidepiece enclosed cavity structure are passed through in succession at described front panel uplink.

6. a kind of front panel structure as claimed in claim 5, is characterized in that, described left side external reinforcing plate for car is corresponding with the installation site of brace panel in brace panel in described left side and right side respectively with the installation site of right side external reinforcing plate for car.

7. a kind of front panel structure as claimed in claim 5, is characterized in that, the medial extremity of described left side external reinforcing plate for car is fixedly connected with outside the root of described left side front side member, and external side end is fixedly connected with left side A post inner panel; The medial extremity of described right side external reinforcing plate for car is fixedly connected with outside the root of described right side front side member, and external side end is fixedly connected with right side A post inner panel.

8. a kind of front panel structure as claimed in claim 5, it is characterized in that, the cavity height of described left side external reinforcing plate for car and right side external reinforcing plate for car reduces gradually from medial extremity to external side end; In described left side, in brace panel and right side, the cavity height of brace panel increases gradually from medial extremity to external side end.

9. a kind of front panel structure as claimed in claim 5, it is characterized in that, the housing surface of described left side external reinforcing plate for car and right side external reinforcing plate for car is provided with reinforced rib.

10. a kind of front panel structure as claimed in claim 1, is characterized in that, in described left side, in brace panel and right side, the housing surface of brace panel is provided with reinforced rib.