Plastic tail gate structure

Abstract

The utility model belongs to the technical field of automobile injection molding structures, and particularly discloses a plastic tail door structure which comprises a tail door inner plate and an upper outer plate, and a functional unit installation portion is arranged on the tail door inner plate and located between a hinge portion and a first glass installation portion. A first reinforcing plate matched with the functional unit installation part in size is arranged at the position, corresponding to the functional unit installation part, between the tail door inner plate and the upper outer plate, and the first reinforcing plate is connected with the tail door inner plate and the upper outer plate. The quality defect caused by the assembling technology during assembling of the plastic tail door is overcome, and the structural rigidity of the upper portion of the plastic tail door is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile injection molding structures, and in particular relates to a plastic tailgate structure. Background Art

[0002] In the early structural design of the plastic tailgate, all functional indicators were designed based on the assembled state of the vehicle, and the problems that may occur in the plastic tailgate at the vehicle assembly site were not considered. When the plastic tailgate is assembled, the bonded inner and outer panels are first installed on the body through hinges, and then the gas springs and balance bars are installed, and finally the headlights, spoilers (or brake lights) and glass are installed. Due to the installation of gas springs and balance bars, the plastic tailgate may be lifted up along the X and Z coordinate directions of the vehicle, causing local bulges on the glue side of the outer panel and the glass, resulting in uneven installation surfaces of the spoiler and glass. Forced installation is bound to produce internal stress. Over time, the inner panel, outer panel and glass are prone to debonding, and the spoiler installation hole or installation surface is prone to cracking. Utility Model Content

[0003] The utility model aims to provide a plastic tailgate structure to solve the quality defects of the plastic tailgate caused by the assembly process during assembly.

[0004] The utility model is realized by the following technical solutions:

[0005] A plastic tailgate structure comprises a tailgate inner panel and an upper outer panel, wherein a functional unit mounting portion is arranged on the tailgate inner panel between a hinge portion and a first glass mounting portion, and a first reinforcing plate matching the size of the functional unit mounting portion is arranged between the tailgate inner panel and the upper outer panel at a position corresponding to the functional unit mounting portion, and the first reinforcing plate is respectively connected to the tailgate inner panel and the upper outer panel.

[0006] In some embodiments, the first reinforcing plate is a steel plate with a thickness of 0.6 mm to 0.65 mm.

[0007] In some embodiments, both ends of the first reinforcing plate near the top are connected to the second reinforcing plate, and a third reinforcing plate is connected to the first reinforcing plate near the bottom.

[0008] In some embodiments, a second glass mounting portion for mounting the tailgate glass is provided on the upper outer panel, and the first glass mounting portion and the second glass mounting portion are matched with each other and connected by adhesive.

[0009] In some embodiments, the upper outer panel includes an upper outer panel mounting portion and an upper outer panel connecting portion, one end of the upper outer panel connecting portion is connected to the upper outer panel mounting portion, and the other end is connected to the second glass mounting portion, and the upper outer panel connecting portion is set as a curved surface.

[0010] In some embodiments, the normal height of the connection between the upper outer panel connecting portion and the upper outer panel mounting portion from the second glass mounting portion is 40 mm to 50 mm, and the normal angle of the second glass mounting portion relative to the upper outer panel connecting portion is 125° to 135°.

[0011] In some embodiments, the tailgate glass is connected to the upper outer panel at the second glass mounting portion by glass glue.

[0012] In some embodiments, the material thickness of the upper outer panel is 2.8 mm, and the material thickness of the tailgate inner panel at the functional unit mounting portion is 2.5 mm.

[0013] In some embodiments, a plurality of weight-reducing holes are provided on the inner panel of the tailgate.

[0014] In some embodiments, the plurality of weight-reducing holes are disposed on the tailgate inner panel at one end close to the tailgate glass.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] 1) The plastic tailgate structure not only improves the first-order bending mode of the entire plastic tailgate by arranging the first reinforcement plate in the functional unit installation portion, but also improves the structural rigidity of the upper portion of the plastic tailgate, thereby compensating for the quality defects caused by the assembly process.

[0017] 2) The upper outer panel and the tailgate inner panel are connected by adhesive on the side close to the tailgate glass. The joint between the upper outer panel and the tailgate glass is connected by glass glue, which increases the rigidity of the adhesive surface and makes it less likely for the connection between the tailgate inner panel, the upper outer panel and the glass to debond.

[0018] 3) The upper outer panel is set as a curved surface, and the adhesive connection between the upper outer panel and the tailgate inner panel adopts a rounded transition. The shape of the contact surface between the upper outer panel and the spoiler is consistent with the installation surface of the spoiler, which makes up for the defect of insufficient rigidity of the bonding between the upper outer panel and the tailgate glass caused by the assembly process.

[0019] 4) A plurality of weight-reducing holes are provided on the tailgate inner panel, and the plurality of weight-reducing holes are provided on the tailgate inner panel at one end close to the tailgate glass, so that the purpose of reducing the weight of the plastic tailgate is achieved while satisfying the rigidity performance of the plastic tailgate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Sectional view of section Ⅰ-Ⅰ;

[0023] Figure 3 for Figure 1 The sectional view of section Ⅰ-Ⅰ after the tailgate inner panel is removed;

[0024] Figure 4 for Figure 1 The structure at A in the middle is only the front view of the tailgate inner panel;

[0025] Figure 5 for Figure 1 The main view of the structure at A in the middle without the upper outer plate;

[0026] Figure 6 It is a schematic structural diagram of the first reinforcing plate of an embodiment of the utility model.

[0027] Among them: 1. Tailgate inner panel, 2. Upper outer panel, 3. First reinforcement plate, 4. Glue, 5. Glass glue, 6. Tailgate glass, 7. Spoiler mounting hole, 8. First connecting hole, 9. Second connecting hole, 10. Third connecting hole, 11. Second reinforcement plate, 12. Third reinforcement plate, 13. Upper outer panel mounting part, 14. Upper outer panel connecting part, 15. Weight reduction hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0029] Example 1

[0030] like Figures 1 to 6 As shown, a plastic tailgate structure includes a tailgate inner panel 1 and an upper outer panel 2, a functional unit mounting portion is arranged on the tailgate inner panel 1 between the hinge portion and the first glass mounting portion, a first reinforcing plate 3 matching the size of the functional unit mounting portion is arranged between the tailgate inner panel 1 and the upper outer panel 2 at a position corresponding to the functional unit mounting portion, and the first reinforcing plate 3 is connected to the tailgate inner panel 1 and the upper outer panel 2, respectively.

[0031] The provision of the first reinforcing plate 3 not only improves the first-order bending mode of the entire plastic tailgate, but also improves the structural rigidity of the upper portion of the plastic tailgate, thereby compensating for quality defects caused by the assembly process.

[0032] like Figure 5 , Figure 6As shown, the first reinforcing plate 3 is a steel plate with a thickness of 0.6 mm to 0.65 mm.

[0033] Preferably, the thickness of the first reinforcing plate 3 is 0.65 mm. At this time, the first reinforcing plate 3 just fills the gap between the tailgate inner plate 1 and the upper outer plate 2, thereby ensuring the overall rigidity of the upper portion of the plastic tailgate.

[0034] Preferably, the material of the first reinforcing plate 3 is 45# steel.

[0035] The first reinforcing plate 3 is provided with first connection holes 8 at both ends near the top, and the first reinforcing plate 3 is provided with a plurality of third connection holes 10 near the bottom. The second reinforcing plate 11 and the third reinforcing plate 12 are provided at the positions of the first connection holes 8 and the third connection holes 10. The second reinforcing plate 11 and the third reinforcing plate 12 are respectively fixedly connected to the first reinforcing plate 3 and the tailgate inner plate 1 through the first connection holes 8 and the third connection holes 10. The second reinforcing plate 11 and the third reinforcing plate 12 are fixedly connected to the first reinforcing plate 3, filling the gap in the upper area of ​​the plastic tailgate, and further enhancing the structural rigidity of the upper part of the plastic tailgate.

[0036] Preferably, the third connection holes 10 are evenly distributed on the first reinforcement plate 3 , thereby increasing the connection stability of the first reinforcement plate 3 on the tailgate inner plate 1 .

[0037] A second connection hole 9 is provided on the first reinforcing plate 3 at a middle position near the top, and the first reinforcing plate 3 is fixedly connected to the tailgate inner plate 1 through the second connection hole 9, so as to further strengthen the connection between the first reinforcing plate 3 and the tailgate inner plate 1.

[0038] Example 2

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, the upper outer panel includes an upper outer panel mounting portion and an upper outer panel connecting portion, one end of the upper outer panel connecting portion is connected to the upper outer panel mounting portion, and the other end is connected to the tailgate inner panel, and the upper outer panel connecting portion is set as a curved surface.

[0040] A spoiler mounting hole 7 is provided on the upper outer panel 2, and the spoiler is fixedly connected to the upper outer panel mounting portion 13 through the spoiler mounting hole 7. The upper outer panel mounting portion 13 matches the shape of the contact surface of the spoiler. The spoiler is installed on the upper outer panel 2 and fixed to the inner panel and the first reinforcing plate 3, which increases the stability of the spoiler installation.

[0041] A first glass mounting portion is provided on the tailgate inner panel 1 at the connection with the upper outer panel connecting portion 14, and a second glass mounting portion is provided on the upper outer panel 2 at the connection with the tailgate glass 6. The first glass mounting portion and the second glass mounting portion are connected by adhesive 4; and the tailgate glass 6 and the second glass mounting portion are connected by glass glue 5. By setting the shape of the contact surface between the upper outer panel mounting portion 13 and the spoiler to be consistent with the mounting surface of the spoiler, the spoiler and the upper outer panel 2 are more closely fitted, and the aesthetic appearance of the spoiler and the upper outer panel 2 is ensured at the same time. By using adhesive 4 and glass glue 5, the rigidity of the adhesive 4 surface is increased, and the local bulge in the bonding area of ​​the upper outer panel 2 is effectively avoided, so that the installation between the spoiler and the tailgate glass 6 is smoother, and the debonding phenomenon between the tailgate inner panel 1, the upper outer panel 2 and the tailgate glass 6 is prevented.

[0042] The normal height of the connection between the upper outer panel connecting portion 14 and the upper outer panel mounting portion 13 from the second glass mounting portion is 40mm to 50mm, and the normal angle between the upper outer panel connecting portion 14 and the second glass mounting portion is 125° to 135°, which makes up for the defect of insufficient rigidity at the bonding point between the upper outer panel 2 and the tailgate glass 6 caused by the assembly process.

[0043] The material thickness of the upper outer panel 2 is 2.8 mm, and the material thickness of the tailgate inner panel 1 at the functional unit mounting portion is 2.5 mm, which helps to improve the overall rigidity of the upper portion of the plastic tailgate.

[0044] Example 3

[0045] like Figure 4 As shown, a plurality of weight-reducing holes 15 are provided on the tailgate inner panel 1 .

[0046] Preferably, the weight-reducing holes 15 are arranged in a rectangular shape, the length range of the weight-reducing holes 15 is 50 mm to 80 mm, and the width range of the weight-reducing holes 15 is 30 mm to 50 mm. By setting these multiple weight-reducing holes 15, the purpose of reducing the weight of the plastic tailgate can be achieved while meeting the stiffness performance of the plastic tailgate.

[0047] Preferably, the plurality of weight-reducing holes 15 are disposed on the tailgate inner panel 1 at one end close to the tailgate glass 6 , which can reduce the weight of the plastic tailgate without affecting the structural rigidity of the plastic tailgate.

[0048] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0049] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A plastic tailgate structure, characterized in that: The invention comprises a tailgate inner panel (1) and an upper outer panel (2), wherein a functional unit installation portion is arranged on the tailgate inner panel (1) between a hinge portion and a first glass installation portion, and a first reinforcing plate (3) matching the size of the functional unit installation portion is arranged between the tailgate inner panel (1) and the upper outer panel (2) at a position corresponding to the functional unit installation portion, and the first reinforcing plate (3) is connected to the tailgate inner panel (1) and the upper outer panel (2) respectively.

2. A plastic tailgate structure according to claim 1, characterized in that: The first reinforcing plate (3) is a steel plate with a thickness of 0.6 mm to 0.65 mm.

3. The plastic tailgate structure according to claim 1, characterized in that: The first reinforcing plate (3) is connected to a second reinforcing plate (11) at both ends close to the top, and the first reinforcing plate (3) is connected to a third reinforcing plate (12) at a position close to the bottom.

4. The plastic tailgate structure according to claim 1, characterized in that: The upper outer panel (2) is provided with a second glass mounting portion for mounting a tailgate glass (6), and the first glass mounting portion and the second glass mounting portion are matched and connected by means of adhesive (4).

5. The plastic tailgate structure according to claim 4, characterized in that: The upper outer panel (2) comprises an upper outer panel mounting portion (13) and an upper outer panel connecting portion (14), one end of the upper outer panel connecting portion (14) being connected to the upper outer panel mounting portion (13), and the other end being connected to the second glass mounting portion, and the upper outer panel connecting portion (14) being arranged as a curved surface.

6. The plastic tailgate structure according to claim 5, characterized in that: The normal height of the connection between the upper outer panel connection portion (14) and the upper outer panel mounting portion (13) from the second glass mounting portion is 40 mm to 50 mm, and the normal angle of the second glass mounting portion relative to the upper outer panel connection portion (14) is 125° to 135°.

7. The plastic tailgate structure according to claim 4, characterized in that: The tailgate glass (6) is connected to the upper outer panel (2) at the second glass mounting portion by means of glass glue (5).

8. The plastic tailgate structure according to claim 1, characterized in that: The material thickness of the upper outer panel (2) is 2.8 mm, and the material thickness of the tailgate inner panel (1) at the functional unit mounting portion is 2.5 mm.

9. The plastic tailgate structure according to claim 1, characterized in that: The tailgate inner plate (1) is provided with a plurality of weight-reducing holes (15).

10. The plastic tailgate structure according to claim 9, characterized in that: The plurality of weight-reducing holes (15) are arranged on the tailgate inner panel (1) at one end close to the tailgate glass (6).

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