Plastic automobile door outer panel

Abstract

The utility model provides a kind of plastic car door outer plate, it is related to automobile structure design technical field, including outer door panel, the inside of outer door panel is embedded with inner door panel, the inner arc wall of outer door panel and close to edge is equipped with multiple installation buckles, the inner wall of inner door panel and close to edge and located installation buckle place is equipped with buckle connecting port, the buckle connecting port is compatible with installation buckle.The utility model discloses that the car door adopts PP+GF30 / 40 composite material, can play the effect of reducing the weight of the car door, so as to achieve the effect of directly improving the cruising range, the car door only needs two sets of mould and a set of fixture to complete inner and outer plate production, can reduce mould development cost, when multiple cavity mould can be produced synchronously, can play the effect of improving production efficiency, and through color mother customization, can play the effect of dispensing with the coating process of sheet metal outer plate, so as to achieve the effect of reducing environmental pollution and production cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive structural design technology, and in particular to a plastic automotive door outer panel. Background Technology

[0002] In both traditional and new energy vehicles, the door is a crucial component that plays a decisive role in passenger entry and exit, vehicle weight, and human-machine interface.

[0003] Currently, the outer panels of commonly used car doors are formed by sheet metal stamping, which increases the overall weight of the vehicle and is detrimental to fuel economy and the range of electric vehicles. Mold development costs are high, and the numerous processes (stamping, welding, painting) result in long production cycles and increased costs. Design freedom is also more limited; complex curved surfaces or structures require multiple sets of molds, increasing development difficulty and freedom. Sheet metal materials (steel) require separate anti-corrosion processes, while aluminum alloys are even more expensive. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the use of sheet metal stamping to form the outer panel of the car door increases the weight of the whole vehicle, which is not conducive to fuel economy and electric vehicle range. Therefore, a plastic car door outer panel is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic car door outer panel, including an outer door panel, an inner door panel embedded inside the outer door panel, a plurality of mounting buckles installed on the inner arc wall of the outer door panel near the edge, a buckle connection port opened on the inner wall of the inner door panel near the edge and at the mounting buckle, the buckle connection port being adapted to the mounting buckle, a spring washer installed inside each buckle connection port, a door inner panel positioning post fixedly connected to the surface of the inner door panel near both ends, and a sponge strip fixedly connected to the surface of the inner door panel near both ends.

[0006] Preferably, an external door handle mounting hole is provided on the surface of the outer door panel near one of the top corners, and an external door handle limiting rib is installed on the edge of the external door handle mounting hole.

[0007] Preferably, the surface of the outer door panel is equipped with multiple door inner panel BOSS pillars.

[0008] Preferably, the surface of the inner door panel is provided with a door inner panel positioning hole.

[0009] Preferably, the top of the inner door panel is equipped with three curved claws.

[0010] Preferably, the inner door panel is equipped with honeycomb reinforcing ribs.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the car door is made of PP+GF30 / 40 composite material, which can reduce the weight of the car door and thus directly improve the driving range.

[0013] 2. In this utility model, the production of the inner and outer panels of the car door only requires two sets of molds and one set of fixtures, which can reduce the mold development cost. When multi-cavity molds can be produced simultaneously, production efficiency can be improved. At the same time, by customizing the color masterbatch, the painting process of the sheet metal outer panel can be eliminated, thereby reducing environmental pollution and production costs.

[0014] 3. In this utility model, the inner door panel supports designs such as honeycomb reinforcing ribs, irregular lightweight holes, and conformal bending shape, which not only meet the requirements of lightweighting but also improve structural strength. It can be integrally molded to install structures such as buckles, positioning pins, and BOSS columns, reducing subsequent assembly processes and improving production efficiency and precision. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional view of the overall structure of a plastic car door outer panel.

[0016] Figure 2 This utility model provides a three-dimensional cross-sectional view of the overall structure of a plastic car door outer panel.

[0017] Illustrations: 1. Outer door panel; 2. Inner door panel; 3. Door outer handle mounting hole; 4. Door outer handle limiting rib; 5. Mounting buckle; 6. Door inner panel BOSS pillar; 7. Door inner panel positioning hole; 8. Spring washer; 9. Sponge strip; 10. Door inner panel positioning post; 11. Bending claw; 12. Buckle connection port. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, such as Figure 1-2As shown, this utility model provides a plastic car door outer panel, including an outer door panel 1, an inner door panel 2 embedded inside the outer door panel 1, a plurality of mounting buckles 5 installed on the inner arc wall of the outer door panel 1 near the edge, a buckle connection port 12 opened on the inner wall of the inner door panel 2 near the edge and at the mounting buckles 5, the buckle connection port 12 is adapted to the mounting buckles 5, and a spring washer 8 is installed inside the buckle connection port 12, a door inner panel positioning post 10 is fixedly connected to the surface of the inner door panel 2 near both ends, and a sponge strip 9 is fixedly connected to the surface of the inner door panel 2 near both ends.

[0021] The overall effect of Embodiment 1 is as follows: an inner door panel 2 is embedded inside the outer door panel 1; multiple mounting clips 5 are installed on the inner arc wall of the outer door panel 1 near the edge, which can fix the door assembly. A clip connection port 12 is provided on the inner wall of the inner door panel 2 near the edge and at the mounting clip 5. The clip connection port 12 is adapted to the mounting clip 5, which can fix the inner door panel 2 by inserting the mounting clip 5 from the clip connection port 12. Spring washers 8 are installed inside the clip connection ports 12, which can be used to fix the door assembly. Door inner panel positioning posts 10 are fixedly connected to the surface of the inner door panel 2 near both ends, which can be used to position the door assembly to the vehicle body. Sponge strips 9 are fixedly connected to the surface of the inner door panel 2 near both ends, which can be used to seal the door.

[0022] Example 2, as Figure 1-2 As shown, an external door handle mounting hole 3 is provided on the surface of the outer door panel 1 near the top corner, and an external door handle limiting rib 4 is installed on the edge of the external door handle mounting hole 3; multiple door inner panel BOSS pillars 6 are installed on the surface of the outer door panel 1; a door inner panel positioning hole 7 is provided on the surface of the inner door panel 2; three curved claws 11 are installed on the top of the inner door panel 2; and honeycomb reinforcing ribs are installed inside the inner door panel 2.

[0023] The overall effect of Embodiment 2 is as follows: The outer door panel 1 has an external door handle mounting hole 3 near the top corner, which serves to install an external door handle; the edge of the external door handle mounting hole 3 has an external door handle limiting rib 4, which restricts the installation position of the external door handle; multiple inner door panel BOSS pillars 6 are installed on the surface of the outer door panel 1, which serve to fix other parts; the inner door panel 2 has an inner door panel positioning hole 7, which allows the outer door panel to be positioned with the inner door panel; three curved claws 11 are installed on the top of the inner door panel 2, which serves to install the inner door panel 2; and honeycomb reinforcing ribs are installed inside the inner door panel 2, which makes the inner door panel 2 more stable.

[0024] Working principle: PP (polypropylene) and GF (glass fiber) are mixed, and color masterbatch is added to adjust the color, forming injection molding granules. These granules are fed into an injection molding machine and melted at a relatively low temperature of 200-280℃. The granules are then injected under high pressure (50-150MPa) through a multi-cavity mold to fill the cavity. After cooling and solidification, the mold is opened and the outer door panel 1 and inner door panel 2 are removed. The main and secondary positioning structures on the back of the outer door panel 1 precisely match the positioning holes and positioning posts of the inner door panel 2, achieving initial alignment. High-strength adhesive is applied to the adhesive application area on the edge of the inner panel. Mechanical connection is achieved through 8-15 clips (the inner panel clip connection port 12 is adapted to the mounting clip 5 on the outer door panel 1). After the glue cures, a structural seal is formed, ensuring the overall rigidity and waterproof performance of the door. 0.8-1.5mm thick honeycomb ribs are set in the stress area of ​​the door. The principle of honeycomb structure to disperse stress is used to improve local strength and reduce the overall weight. The inner panel of the door bends with the curve of the body, so that the stress is evenly distributed along the curve, avoiding stress concentration and ensuring the structural stability of the door under opening, closing, collision and other conditions.

[0025] The wiring diagrams of the outer door panel 1 and the inner door panel 2 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the outer door panel 1 and the inner door panel 2 will not be explained in detail.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic automobile door outer panel, comprising an outer door panel (1), characterized in that: An inner door panel (2) is embedded inside the outer door panel (1). Multiple mounting buckles (5) are installed on the inner arc wall of the outer door panel (1) near the edge. A buckle connection port (12) is opened on the inner wall of the inner door panel (2) near the edge and at the mounting buckle (5). The buckle connection port (12) is adapted to the mounting buckle (5). Spring washers (8) are installed inside the buckle connection port (12). A door inner panel positioning post (10) is fixedly connected to the surface of the inner door panel (2) near both ends. A sponge strip (9) is fixedly connected to the surface of the inner door panel (2) near both ends.

2. The plastic automobile door outer panel according to claim 1, characterized in that: The outer door panel (1) has an outer door handle mounting hole (3) on its surface and near the top corner. The edge of the outer door handle mounting hole (3) is fitted with an outer door handle limiting rib (4).

3. The plastic automobile door outer panel according to claim 1, characterized in that: Multiple door inner panel BOSS pillars (6) are installed on the surface of the outer door panel (1).

4. A plastic automobile door outer panel according to claim 1, characterized in that: The inner door panel (2) has a door inner panel positioning hole (7) on its surface.

5. A plastic automobile door outer panel according to claim 1, characterized in that: The top of the inner door panel (2) is fitted with three curved claws (11).

6. A plastic automobile door outer panel according to claim 1, characterized in that: The inner door panel (2) is equipped with honeycomb reinforcing ribs.

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