Integrated car door outer plate

Abstract

The utility model belongs to the technical field of vehicle door outer plates, and provides an integrated vehicle door outer plate which comprises a vehicle door outer plate body, a vehicle door outer waist beam and a vehicle door anti-collision beam, the vehicle door outer waist beam and the vehicle door anti-collision beam are fiber reinforced composite parts and are formed in a compression molding mode, and the vehicle door outer waist beam and the vehicle door anti-collision beam are made of fiber reinforced composite materials. And after being connected with the vehicle door outer plate body, the vehicle door outer plate assembly is formed. The utility model has the advantages that the fiber reinforced composite material is used as the support structure, the linear expansion coefficient is lower, the product is not easy to deform, the size is better guaranteed, the plastic and the composite material are used, the weight of the vehicle door is reduced, the parts for supporting and reinforcing structures, such as the outer waist beam, the anti-collision beam and the like, are welded with the outer plate into a whole, and the integration level of the outer plate is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle door outer panels, and in particular relates to an integrated vehicle door outer panel. Background Art

[0002] With the development of automobile lightweight technology and the increase in market demand, more and more door products use non-metallic materials to design door outer panels. However, pure plastic outer panels are prone to deformation and other dimensional deterioration problems in application. For vehicle manufacturers, there are many assembly processes and the production cycle is relatively low. The non-traditional sheet metal forms of door outer panels currently popular in the market are generally made of resin materials. Single injection-molded plastic outer panels have material disadvantages of low modulus and large linear expansion coefficient, which makes the product low in rigidity and greatly affected by high and low temperatures. As a result, the product is prone to deformation, the appearance size is difficult to control, and the exquisiteness of the whole vehicle is reduced. In severe cases, it will affect the opening and closing function of the door. In addition, the door outer panel body is generally a single part with low integration, and the cycle is slow when assembling the door assembly. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an integrated vehicle door outer panel with high lightness, good dimensional stability and reliable appearance quality in view of the current status of the prior art.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an integrated vehicle door outer panel, characterized in that it includes a vehicle door outer panel body, a vehicle door outer waist beam and a vehicle door anti-collision beam, the vehicle door outer waist beam and the vehicle door anti-collision beam are fiber-reinforced composite parts, the vehicle door outer waist beam and the vehicle door anti-collision beam are molded, and are connected with the vehicle door outer panel body to form a vehicle door outer panel assembly.

[0005] As one of the ways, in the above-mentioned integrated door outer panel, the door outer panel body is provided with laser welding ribs, and the door outer waist beam and the door anti-collision beam are connected to the door outer panel body by laser welding.

[0006] In the above-mentioned integrated vehicle door outer panel, the vehicle door outer panel body is a polypropylene resin part, and the thickness of the vehicle door outer panel body is 2-4 mm.

[0007] In the above-mentioned integrated door outer panel, the thickness of the door outer waist beam is 2-4 mm.

[0008] In the above-mentioned integrated door outer panel, the thickness of the door anti-collision beam is 2-5 mm.

[0009] As another embodiment, in the above-mentioned integrated door outer panel, the door outer panel body has an outer panel reinforcement plate of unequal thickness, and the outer panel reinforcement plate of unequal thickness is a fiber-reinforced composite component and is molded together with the door outer panel body.

[0010] In the above-mentioned integrated door outer panel, the unequal thickness outer panel reinforcement plate respectively has a first area connected to the door outer waist beam, a second area connected to the door anti-collision beam, and a third area, wherein the thickness of the first area is 2-5mm, the thickness of the second area is 2-5mm, and the thickness of the third area is 0.4-1mm.

[0011] In the above-mentioned integrated door outer panel, an inner panel is also installed inside the door outer panel, and the inner panel and the outer panel are bonded together by structural adhesive. Both ends of the door anti-collision beam have screw connections. When the door outer panel and the inner panel are assembled, the two ends of the door anti-collision beam are connected to the inner panel by bolts.

[0012] Compared with the prior art, the advantages of the utility model are that the outer waist beam and anti-collision beam connected to the outer panel body by laser welding can significantly improve the rigidity of the outer panel and improve the problem of the large linear expansion coefficient of the outer panel, so that the surface quality of the outer panel is higher and the side of the car body has a stronger sense of refinement; fiber-reinforced composite materials are used as the supporting structure, the linear expansion coefficient is lower, the product is not easy to deform, and the size is better guaranteed; plastic and composite materials are used to reduce the weight of the car door, and the supporting and reinforcing structural parts such as the outer waist beam and anti-collision beam are welded to the outer panel as a whole, thereby improving the integration of the outer panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the exploded structure of the first mode of the integrated door outer panel;

[0014] Figure 2 yes Figure 1 Schematic diagram of the assembled structure;

[0015] Figure 3 This is a schematic diagram of the structure connecting the door outer panel body, the door outer waist beam and the door anti-collision beam

[0016] Figure 4 is a schematic diagram of the exploded structure of the second method of the integrated door outer panel;

[0017] Figure 5 It is a structural diagram of the installation of the door outer panel assembly and the inner panel. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] In the figure, there are a door outer panel body 100; a door outer waist beam 200; a door anti-collision beam 300; laser welding ribs 400; an outer panel reinforcement plate of unequal thickness 500; a first area 501; a second area 502; a third area 503; an inner panel 600; a screw connection interface 700; bolts 800; and structural adhesive 900.

[0020] like Figure 1 , Figure 2 as well as Figure 3 As shown, the integrated door outer panel includes a door outer panel body 100, a door outer waist beam 200 and a door anti-collision beam 300. The door outer panel body 100 is a polypropylene resin part, and the thickness of the door outer panel body 100 is 2-4mm. The door outer waist beam 200 and the door anti-collision beam 300 are fiber reinforced composite parts. The thickness of the door outer waist beam 200 is 2-4mm, and the thickness of the door anti-collision beam 300 is 2-5mm. The selected fiber reinforced composite parts need to meet the infrared light transmittance. The fiber reinforced composite parts are used as the supporting structure, the linear expansion coefficient is lower, the product is not easy to deform, and the size is better guaranteed. The door outer waist beam 200 and the door anti-collision beam 300 are compression molded, and After being connected with the door outer panel body 100, a door outer panel assembly is formed. The door outer panel body 100 is provided with laser welding ribs 400. The door outer waist beam 200 and the door anti-collision beam 300 are connected to the door outer panel body 100 by laser welding. Here, the laser passes through one side of the door outer waist beam 200 and the door anti-collision beam 300, and acts on the contact surface between the door outer waist beam 200, the door anti-collision beam 300 and the outer panel body, and is rigidly connected together to form a door outer panel assembly integrating multiple reinforcing functions. By combining some reinforcing function parts with the outer panel as a whole, the problem of outer panel size deformation can be effectively solved. At the same time, the integration of the outer panel can be improved, and the assembly process of the door assembly can be reduced.

[0021] like Figure 4 As shown, here, compared with the first structural form, the door outer panel body has an unequal thickness outer panel reinforcement plate 500, the unequal thickness outer panel reinforcement plate 500 is a fiber reinforced composite part and is molded together with the door outer panel body 100, the door outer panel body 100 is made of resin material and manufactured by injection molding, the unequal thickness outer panel reinforcement plate 500 is made by the layup design of the composite material and the thickening of the layup in each area, and a whole outer panel support structure with a reinforcing effect is made by the molding process. In this patent, the unequal thickness outer panel reinforcement plate 500 respectively has a first area 501 connected to the door outer waist beam 200, a second area 502 connected to the door anti-collision beam 300 and a third area 503, wherein the thickness of the first area 501 is 2-5mm, the thickness of the second area 502 is 2-5mm, and the thickness of the third area 503 is 0.4-1mm.

[0022] like Figure 5As shown, an inner panel 600 is also installed inside the door outer panel, and the inner panel 600 is glued to the outer panel by structural adhesive 900. The above two forms of door outer panels are installed and connected with the inner panel 600, and there are screw interfaces 700 at both ends of the door anti-collision beam 300. When the door outer panel and the inner panel 600 are assembled, the two ends of the door anti-collision beam 300 are installed and connected with the inner panel 600 by bolts 800, which improves the integration of the outer panel.

[0023] The specific embodiments described in this article are merely examples of the spirit of the present invention. Technicians in the technical field to which the present invention belongs can make various modifications to the described specific embodiments or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. An integrated door outer panel, characterized in that: It includes a door outer panel body, a door outer waist beam and a door anti-collision beam. The door outer waist beam and the door anti-collision beam are fiber-reinforced composite parts. The door outer waist beam and the door anti-collision beam are molded and connected with the door outer panel body to form a door outer panel assembly.

2. The integrated door outer panel according to claim 1, characterized in that: The vehicle door outer panel body is provided with laser welding ribs, and the vehicle door outer waist beam and the vehicle door anti-collision beam are connected with the vehicle door outer panel body through laser welding.

3. The integrated door outer panel according to claim 1, characterized in that: The vehicle door outer panel body is a polypropylene resin part, and the thickness of the vehicle door outer panel body is 2-4mm.

4. The integrated door outer panel according to claim 1, characterized in that: The thickness of the door outer waist beam is 2-4 mm.

5. The integrated vehicle door outer panel according to claim 4, characterized in that: The thickness of the door anti-collision beam is 2-5 mm.

6. The integrated vehicle door outer panel according to claim 1, characterized in that: The vehicle door outer panel body is provided with an outer panel reinforcement plate of unequal thickness, and the outer panel reinforcement plate of unequal thickness is a fiber-reinforced composite part and is molded together with the vehicle door outer panel body.

7. The integrated vehicle door outer panel according to claim 6, characterized in that: The unequal thickness outer panel reinforcement plate respectively has a first area connected to the outer waist beam of the door, a second area connected to the door anti-collision beam, and a third area, wherein the thickness of the first area is 2-5mm, the thickness of the second area is 2-5mm, and the thickness of the third area is 0.4-1mm.

8. An integrated vehicle door outer panel according to claim 5 or 7, characterized in that: An inner panel is also installed inside the door outer panel, and the inner panel and the outer panel are bonded together by structural adhesive. Both ends of the door anti-collision beam have screw connections. When the door outer panel and the inner panel are assembled, the two ends of the door anti-collision beam are connected to the inner panel by bolts.

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