Plastic tail door assembled by outer plate

Abstract

The utility model belongs to the technical field of automobile tail doors, and provides a plastic tail door assembled by an outer plate, which is divided into a tail door upper area and a tail door lower area and comprises an inner plate, the outer plate and an upper cover plate, the upper cover plate is mounted and connected on the upper portion of the inner plate in the tail door upper area, and a screw joint structure and / or a clamping structure are / is arranged on the inner plate. And the outer plate in the lower area of the tail gate is directly assembled on the inner plate by virtue of a screw joint and / or clamping structure. The utility model has the advantages that three schemes are provided, the inner plate and the upper cover plate are connected together through a laser welding process, and the inner plate and the outer plate are directly assembled together in a screwing and clamping manner; according to the third mode, the upper cover plate and the lower sealing plate are connected to the inner plate through the laser welding technology, then the outer plate and the lower sealing plate are assembled together in a threaded connection and clamping connection mode, the sealing performance of the whole tail door is guaranteed, meanwhile, the cost of the tail door product is reduced, and the attractiveness is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile tailgates and relates to a plastic tailgate assembled with outer panels. Background Art

[0002] As fuel and power consumption requirements continue to rise, lightweighting becomes essential to reducing them. Composite tailgates are a trending lightweighting solution. However, customers are also increasingly demanding cost reduction, making cost reduction a key focus in the development of composite tailgates. Currently, composite tailgates primarily use adhesive bonding to join the inner and outer panels, and the inner and upper cover panels, together. This approach is prohibitively expensive due to the high cost and long curing time of the adhesive. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a plastic tailgate assembled with outer panels, which reduces the product cost of composite tailgates and helps to improve the competitiveness of composite tailgates.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a plastic tailgate assembled with an outer panel, which is divided into an upper area of the tailgate and a lower area of the tailgate, and is characterized in that it includes an inner panel, an outer panel and an upper cover panel, the upper cover panel is installed and connected to the upper part of the inner panel in the upper area of the tailgate, and a screw connection structure and / or a clip connection structure is arranged on the inner panel, and the outer panel of the lower area of the tailgate is directly assembled on the inner panel by means of the screw connection and / or clip connection structure.

[0005] As one of the methods, in the above-mentioned plastic tailgate assembled with an outer panel, the inner panel has an upper laser welding area, and the upper cover panel on the upper area of the tailgate is connected to the upper laser welding area on the inner panel by laser welding.

[0006] In the above-mentioned plastic tailgate assembled with outer panels, the upper cover is made of a laser-transmitting material, and the inner panel is made of a material capable of absorbing light energy.

[0007] In the above-mentioned plastic tailgate assembled with an outer panel, a glass window frame is further provided on the inner panel on the upper area of the tailgate, and a glass glue coating area is provided on the periphery of the glass window frame.

[0008] In the above-mentioned plastic tailgate assembled with an outer panel, the screw connection structure includes screws and nuts. The screws are arranged on the periphery of the inner panel. The inner panel and the outer panel are assembled and connected by screws and nuts. A lower decorative strip or a blocking cover is installed at the screws for covering.

[0009] In the above-mentioned plastic tailgate assembled with an outer panel, the buckle is arranged on the inner side of the inner panel, and the inner panel and the outer panel are connected by the buckle.

[0010] In the aforementioned plastic tailgate with an outer panel, a sealing bridge is provided on the inner panel at the junction of the lower and upper tailgate areas. This sealing bridge prevents water entering the inner panel from flowing into the upper area. Laser welding, glass gluing, and the sealing bridge ensure a tight seal in the upper tailgate area.

[0011] As another embodiment, in the above-mentioned plastic tailgate assembled with an outer panel, the inner panel has an upper cover bonding area, and the upper cover is bonded to the inner panel at the upper area of the tailgate through the upper cover bonding area.

[0012] As a third method, in the above-mentioned plastic tailgate assembled with an outer panel, a lower sealing plate is also provided on the inner panel on the lower area of the tailgate, and the inner panel has a lower laser welding area. The lower sealing plate on the lower area of the tailgate is connected to the lower laser welding area on the inner panel by laser welding.

[0013] In the above-mentioned plastic tailgate assembled with an outer panel, the lower sealing plate is connected to the inner panel by laser welding, and the outer panel in the lower area of the tailgate is directly assembled to the lower sealing plate by means of a screw connection and / or a clamping structure.

[0014] Compared with the existing technology, the advantage of the present invention lies in proposing three solutions. The first is that the inner panel and the upper cover panel are bonded, and the inner panel and the outer panel are directly assembled together by screwing and clamping; the second is that the inner panel and the upper cover panel are connected together by a laser welding process, and the inner panel and the outer panel are directly assembled together by screwing and clamping; the third is that the upper cover panel and the lower sealing plate are connected to the inner panel by a laser welding process, and the outer panel and the lower sealing plate are assembled together by screwing and clamping, which not only ensures the sealing of the entire tailgate, but also reduces the cost of the tailgate product and improves the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of Example 1 of the plastic tailgate assembled with the outer panel;

[0016] Figure 2 yes Figure 1 Schematic diagram of CC-direction structure;

[0017] Figure 3 It is a schematic diagram of the inner panel structure of the lower area of the tailgate;

[0018] Figure 4 This is a schematic diagram of the structure of the sealed bridge in the lower area of the tailgate.

[0019] Figure 5 It is a schematic diagram of the outer plate structure;

[0020] Figure 6 yes Figure 3 DD-direction structural diagram;

[0021] Figure 7 yes Figure 3 EE structural diagram;

[0022] Figure 8 yes Figure 3 FF structure diagram;

[0023] Figure 9 This is a schematic diagram of the laser welding structure of the inner plate and the upper cover plate in Example 2;

[0024] Figure 10 This is a schematic structural diagram of Example 3 of the plastic tailgate assembled with the outer panel;

[0025] Figure 11 Schematic diagram of the connection structure between the lower sealing plate and the inner plate in Example 3;

[0026] Figure 12 yes Figure 10 Schematic diagram of the GG structure. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0029] In the figure, there are the upper area of the tailgate 100, the lower area of the tailgate 200, the inner panel 300, the outer panel 400, the upper cover 500, the upper laser welding area 600, the glass glue coating area 700, the glass window frame 800, the sealing bridge 900, the screws 1000, the nuts 1001, the buckles 1002, the lower decorative strip 1003, the blocking cover 1004, the upper cover bonding area 1005, the lower sealing plate 1006, the lower laser welding area 1007, and the laser 1008.

[0030] Example 1

[0031] like Figure 1 As shown, the plastic tailgate assembled with the outer panel is divided into an upper tailgate area 100 and a lower tailgate area 200, including an inner panel 300, an outer panel 400 and an upper cover panel 500. The upper cover panel 500 in the upper tailgate area 100 is installed and connected to the upper part of the inner panel 300. The inner panel 300 is arranged with a screw connection structure and / or a clip connection structure. The outer panel 400 in the lower tailgate area 200 is directly assembled on the inner panel 300 by means of a screw connection and / or a clip connection structure. This overcomes the problem of high cost of traditional plastic tailgate assembly due to high glue cost and long curing time.

[0032] Specifically, if Figure 2 As shown, the inner panel 300 has an upper laser welding area 600, and the upper cover 500 in the upper area 100 of the tailgate is connected to the upper laser welding area 600 on the inner panel 300 by laser welding 1008. In order to facilitate laser welding 1008, the upper cover 500 in this patent is made of a laser-transmitting material, and the inner panel 300 is made of a material that can absorb light energy. In this way, the upper cover 500 and the inner panel 300 can be assembled together. The inner panel 300 in the upper area 100 of the tailgate also has a glass window frame 800, and a glass glue area 700 is provided on the circumference of the glass window frame 800. Glass can be installed through the glass glue area 700. As a further optimization, Figure 4 As shown, a sealing bridge 900 is provided on the inner panel 300 at the junction of the lower tailgate area 200 and the upper tailgate area 100. The sealing bridge 900 prevents water from entering the inner panel 300 from flowing into the upper area. The combination of laser welding, glass glue coating, and the sealing bridge 900 ensures the sealing of the upper tailgate area 100. In addition, the lower tailgate area 200 is mainly where the inner panel 300 and the outer panel 400 are assembled. In this embodiment, screw and clip structures are mainly used to replace the original glue bonding solution. Figure 5 、 Figure 6 as well as Figure 7 As shown, the screw connection structure includes a screw 1000 and a nut 1001. The screw 1000 is arranged on the periphery of the inner plate 300, and the buckle 1002 is arranged on the inner side of the inner plate 300. Figure 3 as well as Figure 4 As shown in the figure, the screws 1000 and the buckles 1002 are distributed, and the inner plate 300 and the outer plate 400 are assembled and connected by the screws 1000 and the nuts 1001. Since it is necessary to make mounting holes in the outer area of the inner plate 300 to match the screws 1000, the aesthetics of the inner plate 300 will be destroyed. Therefore, a lower decorative strip 1003 or a blocking cover 1004 is installed at the screw 1000 to cover it. Figure 8As shown, the inner panel 300 and the outer panel 400 are connected by snap-fitting and mounting with the buckle 1002, and the screws 1000 and the buckle 1002 are distributed. In addition, the lower area 200 of the tailgate is a wet area, so the holes inside the sealing strip of the inner panel 300 need to be sealed (such as sealing foam, etc.) to prevent water from flowing into the trunk. The water entering the tailgate flows out through the drainage port at the lower flange of the outer panel 400.

[0033] Example 2

[0034] like Figure 9 As shown, most of the structures of this embodiment are the same as those of embodiment 1, except that the inner panel 300 has an upper cover plate bonding area 1005, and the upper cover plate 500 in the upper area 100 of the tailgate is bonded to the inner panel 300 through the upper cover plate bonding area 1005. Other structures such as the sealing bridge 900 ensure the sealing of the upper area 100 of the tailgate are the same as those of embodiment 1, and the assembly of the inner panel 300 and the outer panel 400 is also performed by screwing and / or clamping structures.

[0035] Example 3

[0036] like Figure 10 As shown, the matching mode of the upper cover plate 500 and the inner plate 300 in this patent is the same as that in Example 1, mainly that the inner plate 300 has an upper laser welding area 600, and the upper cover plate 500 in the upper area 100 of the tailgate is connected to the upper laser welding area 600 on the inner plate 300 by laser welding 1008. In order to facilitate laser welding, the upper cover plate 500 in this patent is made of laser-transmitting material, and the inner plate 300 is made of material that can absorb light energy, so that the upper cover plate 500 and the inner plate 300 can be assembled together. A glass window frame portion 800 is also provided on the inner plate 300 in the upper area 100 of the tailgate, and a glass glue coating area 700 is provided on the circumference of the glass window frame portion 800. Glass can be installed through the glass glue coating area 700. For the assembly of the inner plate 300 and the outer plate 400 in the lower area 200 of the tailgate, this patent A lower sealing plate 1006 is also provided on the inner panel 300 on the lower area 200 of the tailgate, and a lower laser welding area 1007 is provided on the inner panel 300. The lower sealing plate 1006 on the lower area 200 of the tailgate is connected to the lower laser welding area 1007 on the inner panel 300 by laser welding. The lower sealing plate 1006 is connected to the inner panel 300 by laser welding, and the outer panel 400 of the lower area 200 of the tailgate is directly assembled on the lower sealing plate 1006 by means of a screw connection and / or a clamping structure. Here, the lower sealing plate 1006 is used as an intermediate to realize the installation of the outer panel 400 and the inner panel 300 of the lower area 200 of the tailgate, wherein the material of the lower sealing plate 1006 is also selected from a laser-transmitting material, and the material of the inner panel 300 needs to be selected from a material that absorbs light energy. The upper cover plate 500 and the lower sealing plate 1006 are welded to the inner panel 300 by laser welding. Figure 11 and Figure 12As shown, during installation, the inner panel 300 and the lower sealing panel 1006 are first laser welded together into a whole, and then the lower sealing panel 1006 and the outer panel 400 are snap-fitted and connected by the buckle 1002. There is a wet area between the lower sealing panel 1006 and the outer panel 400, so the holes on the lower sealing panel 1006 need to be sealed (such as sealing foam, etc.) to prevent water from flowing into the inner panel 300 and entering the interior of the luggage compartment. The water between the lower sealing panel 1006 and the outer panel 400 flows out through the drain port on the lower flange of the outer panel 400. The advantage of assembling the outer panel 400 on the lower sealing panel 1006 over assembling the outer panel 400 directly with the inner panel 300 is that the installation hole will not damage the appearance of the inner panel 300, so it is more aesthetically pleasing.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A plastic tailgate assembled with an outer panel, divided into an upper tailgate area and a lower tailgate area, characterized in that: It includes an inner panel, an outer panel and an upper cover panel. The upper cover panel is installed and connected to the upper part of the inner panel in the upper area of the tailgate. The inner panel is arranged with a screw connection structure and / or a clip connection structure. The outer panel in the lower area of the tailgate is directly assembled on the inner panel by means of a screw connection and / or a clip connection structure.

2. The plastic tailgate assembled with outer panels according to claim 1, characterized in that: The inner plate is provided with an upper laser welding area, and the upper cover plate on the upper area of the tailgate is connected to the upper laser welding area on the inner plate by laser welding.

3. The plastic tailgate assembled with outer panels according to claim 2, characterized in that: The upper cover plate is made of laser-transmitting material, and the inner plate is made of light-absorbing material.

4. The plastic tailgate assembled with outer panels according to claim 1, characterized in that: A glass window frame portion is further provided on the inner panel on the upper region of the tailgate, and a glass glued region is provided on the periphery of the glass window frame portion.

5. The plastic tailgate assembled with outer panels according to claim 1, characterized in that: The screw connection structure includes screws and nuts. The screws are arranged on the periphery of the inner plate. The inner plate and the outer plate are assembled and connected by the screws and nuts. A lower decorative strip or a blocking cover is installed at the screw position for shielding.

6. The plastic tailgate assembled with outer panels according to claim 1, characterized in that: The buckles are arranged on the inner side of the inner plate, and the inner plate and the outer plate are connected by the buckles.

7. The plastic tailgate assembled with outer panels according to claim 1, characterized in that: Sealing bridges are provided on the inner panels at the junctions of the lower region of the tailgate and the upper region of the tailgate on both sides.

8. A plastic tailgate assembled with outer panels according to any one of claims 4 to 7, characterized in that: The inner panel is provided with an upper cover bonding area, and the upper cover is bonded to the inner panel via the upper cover bonding area on the upper area of the tailgate.

9. A plastic tailgate assembled with outer panels according to any one of claims 2 to 7, characterized in that: A lower sealing plate is further provided on the inner plate in the lower area of the tailgate, and the inner plate has a lower laser welding area. The lower sealing plate in the lower area of the tailgate is connected to the lower laser welding area on the inner plate by laser welding.

10. The plastic tailgate assembled with outer panels according to claim 9, characterized in that: The lower sealing plate is connected to the inner plate by laser welding, and the outer plate in the lower area of the tailgate is directly assembled on the lower sealing plate by means of a screw connection and / or a clamping structure.

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