Composite structure plastic tail door integrated with interior trimming panel

Abstract

The utility model relates to an automobile tail door, in particular to an interior trimming panel integrated composite structure plastic tail door which comprises a tail door outer plate, a structural adhesive layer, a tail door inner plate, a tail lamp overhauling plate and a tail door lock overhauling plate. The tail door outer plate and the tail door inner plate are bonded and fixed through a structural adhesive layer; the tail door inner plate is provided with a first clamping opening used for clamping the tail lamp overhauling plate and a second clamping opening used for clamping the tail door lock overhauling plate, and the tail lamp overhauling plate and the tail door lock overhauling plate are clamped in the first clamping opening and the second clamping opening respectively. Compared with the prior art, the problems that in the prior art, a tail door of a composite structure is low in light weight degree, large in part number, complex in structure, complex in machining technology, poor in appearance matching and the like are solved. According to the tail door of the composite structure, integration of the tail door interior trimming plate and the tail door inner plate is achieved, the overall weight of the tail door is effectively reduced, the attractiveness of the tail door is improved, and the manufacturing period of the tail door can be shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automobile tailgates, specifically to a kind of composite structure plastic tailgate integrated with interior trim panel. BACKGROUND

[0002] Automobile tailgate is one of the important components of vehicle, not only affects the appearance and practicability of vehicle, but also relates to the convenience and safety of owner. It is usually mainly composed of outer panel, inner panel and reinforcing plate set as needed; outer panel is mainly to meet the demand of molding profile, and also meet the installation and positioning needs of some exterior trim (such as spoiler, glass, trim panel and tail light, etc.); inner panel plays a decisive role in the stiffness of tailgate, and provides installation and positioning points for wire harness, antenna, water pipe and interior trim, etc. The main role of reinforcing plate is local reinforcement, which provides reinforcement for the area with higher strength or stiffness requirement. Tailgate lock and lock catch, gas spring, buffer block and sealing strip, etc. accessories or accessories are also assembled on automobile tailgate.

[0003] At present, the existing composite structure tailgate usually adopts: inner and outer panels are made of plastic material, and steel frame or aluminum alloy frame is used for structural reinforcement, and tailgate interior trim panel is assembled on the inner side of tailgate through buckle connection. Under this structure, although the function and appearance requirements of tailgate can be met, in order to ensure that the performance of tailgate meets the standard, the relative complexity of structure design, large number of parts and complex process lead to poor lightweight degree of tailgate assembly, and there are problems such as long mold processing cycle and poor size matching. UTILITY MODEL CONTENT

[0004] The utility model aims at solving at least one of the above problems and provides a kind of composite structure plastic tailgate integrated with interior trim panel, to solve the problems such as low lightweight degree, large number of parts, complex structure, complex processing technology and poor appearance matching of composite structure tailgate in prior art. The composite structure tailgate of the present scheme realizes the integration of tailgate interior trim panel and tailgate inner panel, effectively reduces the weight of tailgate as a whole, improves the appearance of tailgate, and can also shorten the manufacturing cycle of tailgate.

[0005] The utility model aims at solving at least one of the above problems and provides a kind of composite structure plastic tailgate integrated with interior trim panel, to solve the problems such as low lightweight degree, large number of parts, complex structure, complex processing technology and poor appearance matching of composite structure tailgate in prior art. The composite structure tailgate of the present scheme realizes the integration of tailgate interior trim panel and tailgate inner panel, effectively reduces the weight of tailgate as a whole, improves the appearance of tailgate, and can also shorten the manufacturing cycle of tailgate.

[0006] The utility model discloses a kind of interior trim panel integrated composite structure plastic tailgate, including tailgate outer panel, structural adhesive layer, tailgate inner panel, tail lamp maintenance plate and tailgate lock maintenance plate;

[0007] The tailgate outer panel and tailgate inner panel are fixed by structural adhesive layer between the tailgate outer panel and tailgate inner panel;

[0008] The tail gate inner plate is provided with a first clamping port for clamping a tail lamp maintenance plate and a second clamping port for clamping a tail gate lock maintenance plate.

[0009] Preferably, the first clamping port is arranged at the upper portion of the tail gate inner plate, and a plurality of first clamping ports are arranged along the horizontal direction.

[0010] Preferably, the first clamping port is arranged symmetrically along the center line of the tail gate inner plate.

[0011] Preferably, the second clamping port is arranged at the lower portion of the tail gate inner plate and on the center line of the tail gate inner plate.

[0012] Preferably, a cavity is formed between the tail gate outer plate and the tail gate inner plate for accommodating and assembling accessories such as a tail gate wire harness, a tail lamp and a lock.

[0013] Preferably, the material of the tail gate outer plate is PP or PC.

[0014] Preferably, the structural adhesive layer is formed by a reinforcing adhesive, a shock-resistant adhesive, an expansion adhesive or a 3M adhesive, and is selected according to different performance requirements of the tail gate to ensure the performance requirements of the tail gate in terms of sealing, rigidity and strength.

[0015] Preferably, the material of the tail gate inner plate is glass fiber reinforced polypropylene.

[0016] Preferably, the material of the tail lamp maintenance plate is PP, and the material of the tail gate lock maintenance plate is PP.

[0017] The utility model discloses a second aspect discloses a kind of composite structure plastic tail gate of interior trim board integration, which is processed by the following steps:

[0018] The tail gate outer plate is placed in the first film, the tail gate inner plate is placed in the second film, the structural adhesive layer is coated on the tail gate outer plate, the tail gate inner plate is bonded to the tail gate outer plate by the mutual compression between the first film and the second film, and then the tail lamp maintenance plate and the tail gate lock maintenance plate are clamped on the tail gate inner plate.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model discloses a kind of composite material tail gate, which can solve the problems of low lightweight degree, large number of parts, complex structure, complex processing technology and poor appearance matching in the prior art.

[0021] This utility model proposes a novel solution for a composite structure plastic tailgate, providing a tailgate that can meet the needs of future automobiles, especially new energy electric vehicles, satisfying the requirements for lightweighting, improving the driving range of electric vehicles, and meeting the important development directions of diversified styling, intelligence, and modularization; moreover, the solution and concept of this utility model are applicable to composite material doors and hoods.

[0022] Existing plastic tailgate interior panels are retrofitted structures, attached to the inner tailgate panel via clips. This utility model patent integrates most of the structure and function of the interior panel into the inner tailgate panel, reducing the overall weight of the tailgate, improving its aesthetics, and shortening the manufacturing cycle. Furthermore, to facilitate the installation and maintenance of tailgate wiring harnesses, taillights, locks, and other accessories, a taillight access panel and a tailgate lock access panel are added to the inner tailgate panel, ensuring manufacturing feasibility. Attached Figure Description

[0023] Figure 1 A perspective view of the composite plastic tailgate structure;

[0024] Figure 2 This is an exploded view of the composite plastic tailgate structure.

[0025] Figure 3 The Y0 section of the composite structure plastic tailgate ( Figure 1 Schematic diagram of the structural cross-section (AA section);

[0026] In the diagram: 1-Tailgate outer panel; 2-Structural adhesive layer; 3-Tailgate inner panel; 4-Taillight inspection panel; 5-Tailgate lock inspection panel. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. All materials used herein are commercially available products, and any matters not covered herein can be addressed using existing technology.

[0028] Example

[0029] A composite structure plastic tailgate with integrated interior panels, such as Figures 1-3 As shown, it includes the tailgate outer panel 1, structural adhesive layer 2, tailgate inner panel 3, taillight inspection panel 4, and tailgate lock inspection panel 5.

[0030] The tailgate outer panel 1 and tailgate inner panel 3 are bonded and fixed together by structural adhesive layer 2;

[0031] The tailgate inner panel 3 is provided with a first locking interface for locking the taillight inspection plate 4 and a second locking interface for locking the tailgate lock inspection plate 5. The taillight inspection plate 4 and the tailgate lock inspection plate 5 are respectively locked into the first locking interface and the second locking interface.

[0032] More specifically, in this embodiment:

[0033] like Figure 1 The diagram shown is a schematic of the composite plastic tailgate assembly of this solution (since this structure only involves the lower part of the tailgate, the upper part of the complete tailgate (i.e., the part above the wavy line) is hidden in the diagram); further, Figure 1 The tailgate outer panel 1 is also made transparent, which allows for a better overall display of the internal structure of the composite plastic tailgate.

[0034] like Figure 2 The figure shown is an exploded view of the plastic tailgate assembly of this utility model; as shown Figure 3 The figure shows the Y0 cross-section of the plastic tailgate assembly of this utility model. Figure 1 (Cross-section diagram AA). The following details the various aspects of this utility model:

[0035] The outer plastic tailgate panel 1 is injection molded from PP or PC material, offering a diverse range of shapes that traditional sheet metal stamping doors lack: complex shapes can be achieved through injection molding according to structural design requirements. The outer tailgate panel 1 is connected to the inner plastic tailgate panel 3 via a structural adhesive layer 2, ensuring both a good seal and an aesthetically pleasing appearance.

[0036] Structural adhesive layer 2 can be any of the following: structural reinforcing adhesive, shock-absorbing adhesive, expanding adhesive, and 3M adhesive, to ensure the tailgate's sealing, rigidity, and strength requirements. Furthermore, depending on the performance needs of different parts of the tailgate, a segmented structural adhesive layer 2 can be adopted. In this case, different sections can be constructed using different types of adhesives to meet various performance requirements. Structural adhesive layer 2 can use conventional commercially available adhesive products that meet functional requirements; there are no special limitations.

[0037] The inner plastic tailgate panel 3 is made of glass fiber reinforced polypropylene material, on which an integrated interior panel structure is formed, which can effectively reduce the overall weight of the tailgate and the number of parts. The inner tailgate panel 3 has a first latching interface at the top and a second latching interface at the bottom. The first latching interface is located at the position of the taillight on the tailgate, and multiple interfaces are evenly spaced horizontally (five in this embodiment), and the first latching interfaces are arranged symmetrically along the center line of the inner tailgate panel 3. The second latching interface is located at the position of the tailgate lock, and is located on the center line of the inner tailgate panel 3.

[0038] The taillight inspection plate 4 is made of PP material injection molding and is sequentially snapped into each of the first clip interfaces.

[0039] The tailgate lock inspection plate 5 is made of PP material through injection molding and is snapped into the second card interface.

[0040] The tailgate outer plate 1, the structural adhesive layer 2 and the tailgate inner plate 3 are combined together to form the main frame of the composite structure plastic tailgate, which is the main load-bearing structure. The tail lamp access panel 4 and the tailgate lock access panel 5 are installed on the tailgate inner plate 3 by clamping, which ensures the functionality and aesthetics of the tailgate. The cavity is formed between the tailgate outer plate 1 and the tailgate inner plate 3, which can accommodate various tailgate accessories and other structures. Meanwhile, the first clamping port and the second clamping port on the tailgate inner plate 3 provide a reliable channel for internal structure inspection and replacement. The structural adhesive layer 2 of the present embodiment is arranged along the edge of the tailgate outer plate 1, which ensures the reliable connection between the tailgate outer plate 1 and the tailgate inner plate 3 and the edge sealing of the cavity formed therebetween.

[0041] The assembly process of the composite structure plastic tailgate of the present embodiment is as follows:

[0042] First, the tailgate outer plate 1 is placed in one mold, and the tailgate inner plate 3 is placed in another mold. Then, adhesive is applied at the bonding design position of the tailgate outer plate 1, and the two molds are pressed together to form the structural adhesive layer 2 and bond the tailgate outer plate 1 and the tailgate inner plate 3 into a whole. Then, according to the needs of the structural design details, the tailgate wire harness, tail lamp, lock and other accessories are installed in the cavity formed between the tailgate outer plate 1 and the tailgate inner plate 3, and the tail lamp access panel 4 and the tailgate lock access panel 5 are clamped on the tailgate inner plate 3, completing the assembly of the composite structure plastic tailgate.

[0043] In summary, the existing plastic tailgate interior panel is a rear assembly structure, and the interior panel is installed on the plastic tailgate inner plate 3 by clamping. The present scheme integrates most of the interior panel on the tailgate inner plate 3, which reduces the overall weight of the tailgate, improves the aesthetics of the tailgate, shortens the manufacturing cycle of the tailgate, and adds the tail lamp access panel 4 and the tailgate lock access panel 5 for easy installation of tailgate wire harness, tail lamp and lock accessories, fully meeting the manufacturing feasibility and convenience. Moreover, since the tailgate uses injection molding, bonding and clamping in combination, the number of parts and the complexity of the structure can be reduced, thereby alleviating the complexity of the processing technology. At the same time, the tailgate outer plate 1 and the tailgate inner plate 3 formed by injection molding can be molded in one step according to the design structure and shape, which is light in weight and excellent in appearance matching. Therefore, the composite structure plastic tailgate of the present scheme can meet the demand of lightweight and integration of automobile doors.

[0044] The above description of the embodiments is to facilitate the ordinary skilled in the art to understand and use the utility model. The person skilled in the art can obviously easily make various modifications to these embodiments, and the general principles described herein are applied to other embodiments without the need for creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by the person skilled in the art according to the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A composite structural plastic tailgate with integrated interior panel, characterized in that, The tail gate outer plate (1), the structural adhesive layer (2), the tail gate inner plate (3), the tail lamp maintenance plate (4) and the tail gate lock maintenance plate (5) are included. The tail gate outer plate (1) and the tail gate inner plate (3) are fixed by the structural adhesive layer (2). The tail gate inner plate (3) is provided with a first clamping port for clamping the tail lamp maintenance plate (4) and a second clamping port for clamping the tail gate lock maintenance plate (5).

2. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The first clamping port is arranged on the upper part of the tail gate inner plate (3) and is arranged in a horizontal direction.

3. The composite structural plastic tailgate with integrated interior panels of claim 2, wherein, The first clamping port is arranged on the upper part of the tail gate inner plate (3) and is arranged in a horizontal direction.

4. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The second clamping port is arranged on the lower part of the tail gate inner plate (3) and is arranged on the center line of the tail gate inner plate (3).

5. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The tail gate outer plate (1) and the tail gate inner plate (3) form a cavity.

6. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The material of the tail gate outer plate (1) is PP or PC.

7. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The structural adhesive layer (2) is a glue layer formed by reinforced glue, shockproof glue, expansion glue or 3M glue.

8. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The material of the tail gate inner plate (3) is glass fiber reinforced polypropylene.

9. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The material of the tail lamp maintenance plate (4) is PP.

10. The composite structural plastic tailgate with integrated interior panels of claim 1, wherein, The material of the tail gate lock maintenance plate (5) is PP.

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