A plastic door and vehicle

Abstract

This invention relates to a plastic door and a vehicle. The plastic door includes a plastic door panel and a reinforcing assembly. The reinforcing assembly includes a metal plate and a reinforcing plate. The metal plate is embedded within the plastic door panel, and the metal plate also has a first fixing member that protrudes from the side wall of the plastic door panel. The reinforcing plate can fit against the side wall of the plastic door panel and is fixed to the first fixing member by a second fixing member. This arrangement can improve the rigidity of the plastic door and avoid the problem of high-temperature creep.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, specifically to a plastic door and a vehicle. Background Technology

[0002] To achieve lightweighting goals and reduce production costs, the use of plastic doors to replace traditional metal doors is becoming increasingly common. For example, in vehicles, the material for tailgates is shifting from traditional steel tailgates to plastic tailgates.

[0003] Because plastic doors use PP (polypropylene) material for their panels, their structural rigidity is weaker than that of metal doors. Furthermore, in high-temperature environments, plastic doors may experience performance degradation and creep.

[0004] How to improve the rigidity of plastic doors and prevent them from creeping in high-temperature environments is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a plastic door and vehicle that can improve the rigidity of the plastic door and avoid the problem of high-temperature creep.

[0006] To solve the above-mentioned technical problems, the present invention provides a plastic door, which includes a plastic door panel and a reinforcing component; the reinforcing component includes a metal plate and a reinforcing plate, the metal plate is embedded in the plastic door panel, the metal plate is further provided with a first fixing member, the first fixing member protrudes from the side wall surface of the plastic door panel, and the reinforcing plate can fit against the side wall surface of the plastic door panel and be fixed to the first fixing member by a second fixing member.

[0007] An embedded metal plate reinforces the plastic door panel, strengthening its local structure. A reinforcing plate connects to the metal plate from the inside, forming a four-layer structure: an outer plastic layer, a metal plate, an inner plastic layer, and the reinforcing plate. This ensures the overall rigidity of the plastic door panel at the location of the reinforcing component. Furthermore, the metal plate's superior resistance to high-temperature creep enhances the door's overall creep resistance under high-temperature conditions, thus extending its lifespan.

[0008] Optionally, the first fixing member is a screw, and the second fixing member is a nut.

[0009] Optionally, the screw is welded to the metal plate.

[0010] Optionally, the metal plate and the plastic door panel are integrally injection molded.

[0011] Optionally, the two side walls of the metal plate are respectively provided with mold positioning structures.

[0012] Optionally, the sidewall of the metal plate is provided with a positioning surface, which forms the mold positioning structure, and each of the first fixing members is fixed to the positioning surface in a corresponding manner.

[0013] Optionally, the positioning surface may also be provided with reinforcing protrusions in the circumferential direction.

[0014] Optionally, the reinforcing plate is a metal reinforcing plate, a plastic reinforcing plate, or a carbon fiber reinforcing plate.

[0015] The present invention also provides a vehicle that includes the plastic door described above.

[0016] Vehicles equipped with the aforementioned plastic doors have similar technical effects to those of the plastic doors themselves, and will not be described in detail here to save space.

[0017] Optionally, the plastic door is connected to a hinge, and the plastic door is provided with reinforcing components on both sides of the side facing the hinge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the plastic door of a vehicle.

[0020] Figure 3 This is a magnified view of a section of the plastic door;

[0021] Figure 4 yes Figure 3 Sectional view of AA;

[0022] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0023] Figure 6 This is a positioning diagram in the injection molding process of plastic door panels and metal sheets.

[0024] Appendix Figure 1-6 The reference numerals in the attached figures are explained as follows:

[0025] 100 - vehicle, 110 - tailgate;

[0026] 1-Plastic door panel, 11-Outer plastic layer, 12-Inner plastic layer;

[0027] 2-Reinforcing component, 21-Metal plate, 211-Positioning surface, 212-Positioning protrusion, 213-Reinforcing protrusion, 22-Reinforcing plate, 23-First fastener, 24-Second fastener;

[0028] 31-First positioning element, 311-Leaning hole, 32-Second positioning element. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] This invention provides a plastic door and a vehicle. The plastic door refers to a structure capable of opening and closing, specifically a door leaf or a cover for sealing. The vehicle 100 provided in this embodiment includes the aforementioned plastic door, which can be used as follows: Figure 1 and 2 As shown, the tailgate 110 (trunk door) of vehicle 100 can also be formed as the engine end cover of vehicle 100. The specific shape and structure of the plastic door can be set according to its specific location requirements in vehicle 100. Of course, the plastic door provided in this embodiment can be used not only in vehicles, but also in other locations.

[0031] like Figure 2 As shown, the plastic door includes a plastic door panel 1 and a reinforcing component 2. It is easy to understand that the plastic door panel 1 refers to a door panel made of plastic material (such as polypropylene), which has a lighter structure, facilitating weight reduction and effectively reducing costs compared to metal doors. The reinforcing component 2 is used to strengthen the plastic door panel 1, ensuring the overall structural strength of the plastic door. Specifically, the reinforcing component 2 can strengthen the overall structure of the plastic door panel 1, or it can be installed at specific locations on the plastic door panel 1 to achieve localized reinforcement, based on the structural strength requirements of the plastic door.

[0032] To be detailed, such as Figure 4 As shown, the reinforcing component 2 includes a metal plate 21 and a reinforcing plate 22. The metal plate 21 is embedded within the plastic door panel 1, and the reinforcing plate 22 can be attached to the side wall of the plastic door panel 1 and fixed to the metal plate 21. In this embodiment, the material of the reinforcing plate 22 is not limited; for example, a metal reinforcing plate, a plastic reinforcing plate, or a carbon fiber reinforcing plate can be used. Specifically, the metal plate 21 is provided with a first fixing member 23, which can protrude from the side wall of the plastic door panel 1. After the reinforcing plate 22 is attached to the side wall of the plastic door panel 1, it can be fixed to the first fixing member 23 by a second fixing member 24. That is, the first fixing member 23 and the second fixing member 24 can fix each other, thus fixing the reinforcing plate 22 and the metal plate 21.

[0033] When the plastic door forms the tailgate 110 of the vehicle 100, the first fixing member 23 protrudes from the inner wall of the plastic door panel 1, and the reinforcing plate 22 is attached to the inner wall of the plastic door panel 1 and fixed to the first fixing member 23 by the second fixing member 24. The inner wall refers to the side facing the inside of the vehicle 100, which ensures that the overall external structure of the plastic door is more regular and beautiful.

[0034] The metal plate 21 is embedded within the plastic door panel 1, which can strengthen the local structure of the plastic door panel 1. The reinforcing plate 22 can be further connected to the metal plate 21 from the inside, forming a four-layer structure here, such as... Figure 5 As shown, this four-layer structure, from the outside to the inside, includes an outer plastic layer 11, a metal plate 21, an inner plastic layer 12, and a reinforcing plate 22, thereby ensuring the overall rigidity of the plastic door panel 1 at the location where the reinforcing component 2 is provided. Meanwhile, since the metal plate 21 is made of metal, it has strong resistance to high-temperature creep. Therefore, the inclusion of the metal plate 21 can improve the overall creep resistance of the plastic door in high-temperature environments, thereby extending the service life of the plastic door.

[0035] like Figure 4 As shown, the first fixing member 23 is a screw, and the second fixing member 24 is a nut. That is, one end of the screw is fixed to the metal plate 21, and the other end extends out of the inner plastic layer 12 and protrudes from the side wall of the plastic door panel 1. During installation, the reinforcing plate 22 is attached to the side wall of the plastic door panel 1, and the reinforcing plate 22 is provided with mounting holes that are compatible with the screw. During installation, the screw passes through the mounting holes, and then the nut cooperates with the screw to achieve the fixed installation between the reinforcing plate 22 and the plastic door panel 1, which is relatively convenient to operate.

[0036] Of course, in this embodiment, the specific structure of the first fixing member 23 and the second fixing member 24 is not limited. For example, the first fixing member 23 can be a nut or a threaded hole in the metal plate 21, and the second fixing member 24 can be a bolt. The reinforcing plate 22 is provided with corresponding mounting holes. During installation, the bolt passes through the mounting hole and is fixed by cooperating with the nut or the threaded hole. Alternatively, the first fixing member 23 and the second fixing member 24 can also be fixed by a snap-fit ​​connection.

[0037] When the first fixing member 23 is set as a screw and the second fixing member 24 is set as a nut, there is no need to limit the length of the screw when the reinforcing plate 22 is installed. The end of the screw can pass through the reinforcing plate 22 and the nut. There is also no requirement for the thickness of the metal plate 21. After the first fixing member 23 and the second fixing member 24 are fixed, the overall structure of the outer wall of the plastic door panel 1 is neat and beautiful.

[0038] Furthermore, there are no specific limitations on the fixing method between the screw and the metal plate 21. In this embodiment, the screw and the metal plate 21 are fixed by welding, which simplifies the processing technology. Of course, in this embodiment, the screw and the metal plate 21 can also be fixed by fasteners. For example, if the end of the screw facing the metal plate 21 has a threaded hole, a fixing bolt can be passed through the metal plate 21 and fixed by engaging the threaded hole. Welding can simplify the fixing operation and processing technology and improve installation efficiency. In addition, in this embodiment, one end of a screw can be welded to the metal plate 21, or the head of a bolt can be welded to the metal plate 21, and the screw portion of the bolt can protrude from the side wall of the plastic door panel 1.

[0039] The metal plate 21 and the plastic door panel 1 are integrally injection molded. Alternatively, in this embodiment, the plastic door panel 1 may have an installation cavity at the location where structural reinforcement is required. The two side walls of the installation cavity are the inner plastic layer 12 and the outer plastic layer 11, respectively. The metal plate 21 is installed in the installation cavity 21 and fixed by adhesive or riveting. When the metal plate 21 and the plastic door panel 1 are integrally injection molded, the bonding strength between the metal plate 21 and the plastic door panel 1 can be guaranteed. At the same time, the processing technology can be simplified, the processing accuracy requirements can be reduced, and the installation flexibility can be guaranteed.

[0040] Furthermore, the two side walls of the metal plate 21 are respectively provided with mold positioning structures. These mold positioning structures are used to interact with and position the injection mold during the injection molding process, ensuring that the relative position of the metal plate 21 and the injection mold is stable during the injection molding process.

[0041] Specifically, this embodiment does not limit the mold positioning structure, as long as it can cooperate with the positioning structure provided in the mold to position the metal plate 21 from both the inside and outside. For example Figure 6 As shown, a positioning protrusion 212 is provided on the outer side wall of the metal plate 21. The positioning protrusion 212 forms the above-mentioned mold positioning structure. The positioning protrusion 212 is formed by a bulge provided on the outer side wall of the metal plate 21, or the positioning protrusion 212 can be set as a separate protrusion structure on the wall of the metal plate 21. Correspondingly, the mold is provided with a second positioning member 32, which can cooperate with the positioning protrusion 212 for positioning. The inner side wall of the metal plate 21 is provided with a positioning surface 211, which forms the above-mentioned mold positioning structure. The mold is provided with a first positioning member 31, which can cooperate with the positioning surface 211 for positioning.

[0042] In other words, the inner and outer sidewalls of the metal plate 21 are respectively provided with mold positioning structures, and the injection mold is also provided with corresponding positioning structures (including the first positioning component 31 and the second positioning component 32 mentioned above). During the injection molding process, the mold positioning structure provided on the metal plate 21 can cooperate with the positioning structure provided on the mold to position the metal plate from the inner and outer sides, so as to restrict the position of the metal plate from the inner and outer sides and ensure that the position of the metal plate 21 after injection molding is accurate and stable.

[0043] Before injection molding, the first fixing member 23 is fixed to the metal plate 21. Therefore, during the injection molding process, the first fixing member 23 needs to be protected to prevent the formation of a plastic layer on the surface of the screw, which would affect the subsequent installation of the reinforcing plate 22. Figure 6 As shown, in this embodiment, the first fixing member 23 is fixed to the positioning surface 211 of the inner sidewall of the metal plate 21. The surface of the positioning surface 211 is not covered by a plastic layer. It can be used to cooperate with the positioning structure of the mold to achieve positioning during the injection molding process, while also protecting the first fixing member 23. There is no need to avoid the first fixing member 23 during injection molding, thereby simplifying the overall injection molding process.

[0044] like Figure 6 As shown, the first positioning member 31 has a relief hole 311 at one end that mates with the positioning surface 211. During injection molding, the end face of the relief hole 311 fits against the positioning surface 211, and the first fixing member 23 is located inside the relief hole 311. The first positioning member 31 can provide protection for the first fixing member 23 and prevent the formation of a plastic layer on its surface during injection molding.

[0045] like Figure 3 and Figure 6 As shown, the positioning surface 211 is also provided with reinforcing protrusions 213 in the circumferential direction. Since there is no plastic layer on the surface of the positioning surface 211, the reinforcing protrusions 213 in the circumferential direction of the positioning surface 211 can enhance the structural strength of the plastic door panel 1 at the positioning surface 211. Specifically, the reinforcing protrusions 213 are formed together during the injection molding process, and the molding process is relatively simple. The reinforcing protrusions 213 can be a ring structure arranged along the circumference of the positioning surface 211, and can be set according to the actual situation.

[0046] The specific location of the reinforcing component 2 on the plastic door panel 1 can be set according to the actual situation. When this plastic door is applied to the vehicle 100, the plastic door is connected to a hinge and the opening and closing operation is realized through the hinge. Specifically, reinforcing components 2 are respectively provided on both sides of the side of the plastic door facing the hinge to ensure the structural strength of the plastic door at the connection with the hinge. For example, when the tailgate 110 of the vehicle 100 uses the above-mentioned plastic door, the top of the plastic door is connected to a hinge. Therefore, if Figure 2As shown, reinforcing components 2 are provided on both sides of the top of the tailgate 110 to increase the structural strength of the tailgate 110 at the hinge connection. For other positions of the tailgate 110, reinforcing components 2 can be provided according to specific circumstances.

[0047] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A plastic door, characterized in that, Includes plastic door panel (1) and reinforcing components (2); The reinforcing component (2) includes a metal plate (21) and a reinforcing plate (22). The metal plate (21) is embedded in the plastic door panel (1). The metal plate (21) is also provided with a first fixing member (23). The first fixing member (23) protrudes from the side wall of the plastic door panel (1). The reinforcing plate (22) can fit against the side wall of the plastic door panel (1) and is fixed to the first fixing member (23) by a second fixing member (24). The plastic door panel (1) includes an outer plastic layer (11) and an inner plastic layer (12), and the metal plate (21) is wrapped between the outer plastic layer (11) and the inner plastic layer (12); The metal plate (21) and the plastic door panel (1) are integrally injection molded; The metal plate (21) has mold positioning structures on both sides of its sidewalls; The inner sidewall of the metal plate (21) is provided with a positioning surface (211), which forms the mold positioning structure. Each of the first fixing members (23) is fixed to each of the positioning surfaces (211) in a corresponding manner. The surface of the positioning surface (211) does not have a plastic layer, and the circumferential direction of the positioning surface (211) is also provided with a reinforcing protrusion (213), which is integrally injection molded with the plastic door panel (1).

2. The plastic door according to claim 1, characterized in that, The first fixing member (23) is a screw, and the second fixing member (24) is a nut.

3. The plastic door according to claim 2, characterized in that, The screw is welded and fixed to the metal plate (21).

4. The plastic door according to any one of claims 1-3, characterized in that, The reinforcing plate (22) is a metal reinforcing plate, a plastic reinforcing plate, or a carbon fiber reinforcing plate.

5. A vehicle (100), characterized in that, Including the plastic door as described in any one of claims 1-4.

6. The vehicle according to claim 5, characterized in that, The plastic door is connected to a hinge, and the plastic door is provided with reinforcing components (2) on both sides of the side facing the hinge.

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