A reinforced tailgate inner panel with integrated cover
By installing a cover plate on the inner panel of the tailgate to replace the metal reinforcement and plastic cover plate, a closed cavity is formed, which solves the problem of high cost of composite material tailgate inner panels and achieves the goals of low cost and lightweight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINTAI MACHINERY
- Filing Date
- 2024-10-23
- Publication Date
- 2026-06-30
AI Technical Summary
The existing composite material tailgate inner panel and plastic top cover are bonded together with glue. The metal reinforcement is expensive and requires high precision, which makes it difficult to meet customers' needs for low cost and lightweight design.
The cover plate is installed on the inner panel of the tailgate by glue or laser welding, replacing the metal reinforcement and plastic cover plate, forming a closed cavity to enhance rigidity and achieve a fewer parts design.
This reduces the production cost of composite material tailgates, enhances product competitiveness, and meets the requirements of low cost and low energy consumption.
Smart Images

Figure CN224427065U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automobile tailgate technology, and relates to a reinforced tailgate inner panel with an integrated cover. Background Technology
[0002] With increasingly stringent requirements for fuel and electricity consumption, lightweighting is an essential step in reducing these costs, making composite material tailgates a growing trend as a lightweight solution. However, customers are also placing stricter cost demands on the industry, making cost reduction a key focus for the development of composite material tailgates. Currently, the inner panel of the composite material tailgate is bonded to the plastic top cover with adhesive. The top cover serves to increase the strength of the inner panel and accommodate a spoiler. The inner panel is primarily reinforced with metal reinforcing components, typically installed via injection molding, bonding, or screwing. This approach often results in large, precision-required metal components, leading to excessively high costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an integrated cover plate reinforced tailgate inner panel in view of the current situation of the prior art. It is installed on the inner panel by adhesive bonding (laser welding or other forms) to replace the original metal reinforcement and plastic cover plate, thereby achieving the goal of cost reduction.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a reinforced tailgate inner panel with an integrated cover plate, comprising a tailgate inner panel, characterized in that a cover plate is installed on the upper part of the tailgate inner panel, and the cover plate and the tailgate inner panel form a closed cavity.
[0005] As one method, in the aforementioned reinforced tailgate inner panel with an integrated cover, the cover is a metal cover, and the metal cover is glued to the tailgate inner panel around its perimeter.
[0006] As another approach, in the aforementioned reinforced tailgate inner panel with an integrated cover, the cover is a plastic cover, and the perimeter of the plastic cover is laser-laid onto the tailgate inner panel.
[0007] In the aforementioned reinforced tailgate inner panel of an integrated cover plate, the laser overlap width of the plastic cover plate is 10mm.
[0008] As an optimization, in the aforementioned reinforced tailgate inner panel with an integrated cover, the cover is made of a laser-transmitting material, and the tailgate inner panel is made of a light-absorbing material.
[0009] In the aforementioned reinforced tailgate inner panel of an integrated cover plate, the upper part of the cover plate connecting to the tailgate inner panel is the first reinforced hinge installation area, the lower part of the cover plate connecting to the tailgate inner panel is the second reinforced hinge installation area, and the remaining area of the cover plate is the spoiler arrangement and installation area.
[0010] Compared with the prior art, the advantage of this utility model is that the cover plate is installed on the inner plate by adhesive bonding (laser welding or other forms), replacing the original metal reinforcement and plastic cover plate, reducing the cost of composite material tailgate products, which is conducive to improving the competitiveness of composite material tailgates and meeting customers' needs for low cost, low fuel consumption and low power consumption. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of the reinforced tailgate inner panel of this integrated cover plate, which uses a metal cover plate bonding method.
[0012] Figure 2 yes Figure 1 A schematic diagram of the AA-direction structure;
[0013] Figure 3 This is a schematic diagram of the structure of the reinforced tailgate inner panel of this integrated cover plate, which is made of plastic cover plate laser welding method;
[0014] Figure 4 yes Figure 3 A schematic diagram of the BB-oriented structure. Detailed Implementation
[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0016] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0017] In the diagram: Tailgate inner panel 100; Metal cover plate 200; Adhesive 300; First reinforced hinge mounting area 400; Second reinforced hinge mounting area 500; Enclosed cavity 600; Plastic cover plate 700; Laser 800.
[0018] Example 1
[0019] like Figure 1 and Figure 2As shown, the reinforced tailgate inner panel of this integrated cover includes a tailgate inner panel 100, with a cover plate installed on the upper part of the tailgate inner panel 100. In this embodiment, the cover plate is a metal cover plate 200. The metal cover plate 200 is glued to the tailgate inner panel 100 around its perimeter with adhesive 300. In addition, the upper part of the metal cover plate 200 connected to the tailgate inner panel 100 is the first reinforced hinge mounting area 400, and the lower part of the metal cover plate 200 connected to the tailgate inner panel 100 is the second reinforced hinge mounting area 500. The remaining area of the metal cover plate 200 is the spoiler arrangement mounting area. Furthermore, the metal cover plate 200 and the tailgate inner panel 100 form a closed cavity 600, which enhances the rigidity of the inner panel. Therefore, compared with traditional composite tailgates, this invention can integrate the functions of metal reinforcement and metal cover plate 200, so that the tailgate system can achieve the purpose of reducing parts and reducing costs.
[0020] Example 2
[0021] The reinforced tailgate inner panel of this integrated cover includes a tailgate inner panel 100, with a cover plate installed on the upper part of the tailgate inner panel 100. In this embodiment, the cover plate is a plastic cover plate 700. The plastic cover plate 700 is overlapped and installed on the tailgate inner panel 100 by laser welding 800. Here, the cover plate is made of laser-transmitting material, while the tailgate inner panel 100 is made of light-absorbing material. In this way, the cover plate can be installed on the tailgate inner panel 100 by laser welding 800. The laser overlap width of the plastic cover plate 700 is 10mm, and the plastic cover plate 700 and the tailgate inner panel 100 are connected by laser welding 800 and laser welding 800. The inner panel 100 has a closed cavity 600, which can enhance the rigidity of the inner panel. The upper part of the plastic cover 700 connected to the inner panel 100 of the tailgate is the first reinforced hinge installation area 400, and the lower part of the plastic cover 700 connected to the inner panel 100 of the tailgate is the second reinforced hinge installation area 500. The remaining area of the plastic cover 700 is the spoiler arrangement and installation area. This embodiment 2 can also achieve the purpose of reducing the number of parts in the tailgate system and reducing costs. Compared with embodiment 1, it can save glue costs and further achieve the purpose of cost reduction.
[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. An integrated tailgate inner panel reinforcement cover, comprising a tailgate inner panel, characterized in that, A cover plate is installed on the upper part of the tailgate inner panel, and the cover plate and the tailgate inner panel form a closed cavity; the cover plate is a plastic cover plate, and the perimeter of the plastic cover plate is installed on the tailgate inner panel by laser overlap; the laser overlap width of the plastic cover plate is 10mm; the cover plate is a laser-transmitting material, and the tailgate inner panel is a light-absorbing material; the upper part of the cover plate connecting to the tailgate inner panel is the first reinforced hinge installation area, the lower part of the cover plate connecting to the tailgate inner panel is the second reinforced hinge installation area, and the remaining area of the cover plate is the spoiler arrangement and installation area.