CN104669993B - A kind of automobile rear door assembly and automobile - Google Patents

Abstract

The invention provides an automobile back door assembly and an automobile, wherein the automobile back door assembly comprises a back door outer plate assembly and a back door inner plate assembly, the back door outer plate assembly comprises a back door outer plate made of carbon fiber materials, and the back door inner plate assembly comprises a back door inner plate made of carbon fiber materials, a hinge reinforcing plate, a pneumatic supporting rod reinforcing plate and a lock catch reinforcing plate; the hinge reinforcing plate, the pneumatic supporting rod reinforcing plate and the lock catch reinforcing plate are pre-buried in a die when the back door inner plate is formed, and are fixedly arranged on the back door inner plate in an adhesive mode; the back door outer plate is adhered to the outer side of the back door inner plate. In the invention, the hinge reinforcing plate, the pneumatic supporting rod reinforcing plate and the lock catch reinforcing plate are pre-buried in the die when the back door inner plate is formed, and are adhered to the back door inner plate, so that the traditional welding process is omitted, and the production efficiency is improved. The outer plate of the back door is adhered to the outer side of the inner plate of the back door, the edge wrapping and welding processes are omitted, the process is simplified, and the production efficiency is improved.

Description

A kind of automobile rear door assembly and automobile

technical field

The invention relates to the technical field of automobile engineering, in particular to an automobile back door assembly and an automobile.

Background technique

The back door of a car mostly refers to the trunk opening door of hatchback cars and SUV models. Most of them adopt an upturned structure. It is the most important opening part in the car body. effect. The quality of the back door is mainly reflected in the anti-collision performance, sealing performance, opening and closing convenience and other performance indicators of the back door.

The structure and manufacturing process of the traditional automobile back door assembly are: the back door outer panel assembly and the back door inner panel assembly are hemmed, welded to form a back door sheet metal assembly, and then the back door decorative panel The automobile rear door assembly is formed by snapping on the back door sheet metal assembly. Among them, the back door inner panel assembly is welded by the back door inner panel, the hinge reinforcement plate, the pneumatic support rod reinforcement plate, and the lock installation plate. Chinese invention patents CN203188829U and CN203186048U all have the description that the hinge reinforcement plate and the inner panel of the back door are welded. The back door outer panel assembly includes the back door outer panel. The above-mentioned rear door inner panel, rear door outer panel, hinge reinforcement plate, pneumatic support rod reinforcement rod, and lock installation plate are all stamped from steel plates, and the rear door decorative panel and buckle are injection molded, so the back of the car The manufacturing process of the door assembly requires a large number of sheet metal stamping dies and injection molds. The cost of the molds is large, the number of fixtures is large, the number of parts is also large, the assembly time of parts is long, the work efficiency is low, and the cost is high.

The inner panel of the back door and the outer panel of the back door are stamped and formed and then hemmed and welded. For example, in the structure of the back door of an automobile disclosed in Chinese invention patent CN202320523U, one side of the inner panel of the back door is connected to the outer panel of the back door. One end is welded, the outer panel of the back door has an outward bulge, the other end of the outer panel of the back door is bent into an "L"-shaped hemming section, and the other side of the inner panel of the back door is placed inside the edge. The existing problems are: the hemming process is complex and the processing efficiency is low.

In addition, the inner panel of the back door and the outer panel of the back door are all made of metal materials, which increases the weight of the vehicle and increases fuel consumption.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automobile back door assembly and an automobile, reduce the number of stamping dies and injection molds, reduce mold cost investment; cancel the hemming process of the inner and outer panels of the back door, and improve processing efficiency.

In order to solve the above technical problems, an embodiment of the present invention provides an automobile back door assembly, including a back door outer panel assembly and a back door inner panel assembly, the back door outer panel assembly is made of carbon fiber Material molded, pultruded rear door outer panel, the rear door inner panel assembly includes molded carbon fiber material, pultruded rear door inner panel, hinge reinforcement plate, pneumatic support rod reinforcement plate and lock buckle reinforcement plate;

The hinge reinforcement plate, pneumatic support rod reinforcement plate and lock buckle reinforcement plate are pre-buried in the mold when the back door inner panel is formed, and are fixed on the back door inner panel by bonding;

The outer panel of the rear door is bonded to the outer side of the inner panel of the rear door.

In the above structure, both the inner panel of the back door and the outer panel of the back door are made of carbon fiber material, which is light in weight and high in strength, and can be properly adjusted according to the strength requirements of the back door. The material is thick. The inner panel of the back door and the outer panel of the back door no longer use sheet metal parts, and the traditional stamping dies for the inner panel of the back door and the outer panel of the back door are cancelled, the number of molds is reduced, and the cost is reduced; the weight of the car is reduced, and the fuel consumption is reduced.

The hinge reinforcement plate, the pneumatic support rod reinforcement plate and the lock buckle reinforcement plate are pre-buried in the mold when the inner panel of the back door is formed, and fixed on the inner panel of the back door by bonding, eliminating the traditional welding process ,Increase productivity.

The outer panel of the back door is bonded to the outer side of the inner panel of the back door, canceling the traditional wrapping and welding process, simplifying the process and improving production efficiency.

Wherein, the back door inner panel assembly further includes a back door buckle handle decorative plate fixedly connected to the back door inner panel by bolts. In the above structure, the decorative panel of the back door buckle is changed from the traditional snap connection with the inner panel of the back door through a buckle to a fixed connection through bolts, which is convenient for disassembly and maintenance of wiring harness and other accessories; at the same time, the snap part and its injection molding are cancelled. Tooling, parts and tooling counts are reduced, reducing costs.

Wherein, the rear door outer panel assembly further includes a high-mounted brake lamp fastener provided on the outer upper part of the rear door outer panel.

Wherein, the rear door inner panel assembly also includes a buffer block reinforcement plate, which is pre-embedded in the mold when the rear door inner panel is formed, and fixed on the rear door inner panel by bonding.

Further, the hinge reinforcement plate includes a left hinge reinforcement plate and a right hinge reinforcement plate, which are respectively fixed on the left and right sides of the inner panel of the back door. The pneumatic support rod reinforcement plate includes a left pneumatic support rod reinforcement plate and a right pneumatic support rod reinforcement plate, which are respectively fixed on the left and right sides of the middle part of the back door inner panel. The buffer block reinforcing plate includes a left buffer block reinforcing plate and a right buffer block reinforcing plate, which are respectively fixed on the left and right sides of the lower part of the back door inner panel.

An embodiment of the present invention also provides an automobile, which includes the above-mentioned automobile rear door assembly.

The beneficial effects of above-mentioned technical scheme of the present invention are as follows:

In the above scheme, both the inner panel of the back door and the outer panel of the back door are made of carbon fiber material, which is light in weight and high in strength, and can be properly adjusted according to the strength requirements of the back door. The material is thick. The inner panel of the back door and the outer panel of the back door no longer use sheet metal parts, and the traditional stamping dies for the inner panel of the back door and the outer panel of the back door are cancelled, the number of molds is reduced, and the cost is reduced; the weight of the car is reduced, and the fuel consumption is reduced. The hinge reinforcement plate, the pneumatic support rod reinforcement plate and the lock buckle reinforcement plate are pre-buried in the mold when the inner panel of the back door is formed, and fixed on the inner panel of the back door by bonding, eliminating the traditional welding process ,Increase productivity. The outer panel of the back door is bonded to the outer side of the inner panel of the back door, canceling the traditional wrapping and welding process, simplifying the process and improving production efficiency.

Description of drawings

Fig. 1 is a schematic structural view of the rear door outer panel assembly in Embodiment 1 of the present invention;

Fig. 2 is a schematic structural view of the rear door inner panel assembly in the first embodiment.

Explanation of reference signs:

1. Back door outer panel assembly;

10. Back door outer panel;

11. Fasteners for high position brake lights;

2. Back door inner panel assembly;

20. The inner panel of the back door;

21. Hinge reinforcement plate;

22. Pneumatic support rod reinforcement plate;

23. Lock reinforcement plate;

24. Buffer block reinforcement plate;

25. Decorative panel for the back door button handle.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

The invention aims at the problems of large number of parts and moulds, complicated production process and high production cost in the existing automobile rear door assembly, and provides an automobile rear door assembly and an automobile.

An embodiment of the present invention provides an automobile back door assembly, including a back door outer panel assembly and a back door inner panel assembly. As shown in Figure 1, the rear door outer panel assembly 1 includes a rear door outer panel 10 molded and pultruded from carbon fiber materials, and a high-mounted brake light is provided on the upper outer side of the rear door outer panel 10 Fastener 11.

As shown in Figure 2, the back door inner panel assembly 2 includes a back door inner panel 20 molded and pultruded by carbon fiber material, a hinge reinforcement plate 21, a pneumatic support rod reinforcement plate 22, and a lock reinforcement plate 23 and buffer block reinforcing plate 24.

The hinge reinforcement plate 21, the pneumatic support rod reinforcement plate 22, the lock buckle reinforcement plate 23 and the buffer block reinforcement plate 24 are pre-buried in the mold when the back door inner panel 20 is formed, and are fixed in the mold by bonding. On the back door inner panel 20.

The rear door outer panel 10 is bonded to the outer side of the rear door inner panel 20 .

The back door inner panel assembly 2 also includes a back door button hand trim panel 25 fixedly connected to the back door inner panel 20 by bolts. In the above structure, the decorative panel of the back door buckle is changed from the traditional snap connection with the inner panel of the back door through a buckle to a fixed connection through bolts, which is convenient for disassembly and maintenance of wiring harness and other accessories; at the same time, the snap part and its injection molding are cancelled. Tooling, parts and tooling counts are reduced, reducing costs.

In this embodiment, the hinge reinforcement plate 21 includes a left hinge reinforcement plate and a right hinge reinforcement plate, which are respectively fixed on the left and right sides of the upper part of the back door inner panel 20 .

The pneumatic support rod reinforcement plate 22 includes a left pneumatic support rod reinforcement plate and a right pneumatic support rod reinforcement plate, which are respectively fixed on the left and right sides of the middle part of the back door inner panel 20 .

The buffer block reinforcing plate 24 includes a left buffer block reinforcing plate and a right buffer block reinforcing plate, which are respectively fixed on the left and right sides of the inner panel bottom of the back door.

Embodiment 1 of the present invention also provides an automobile, which includes the above-mentioned automobile rear door assembly.

In the present invention, both the inner panel of the back door and the outer panel of the back door are made of carbon fiber material, which is light in weight and high in strength, and the inner panel of the back door and the outer panel of the back door can be properly adjusted according to the strength requirements of the back door. The material is thick. The inner panel of the back door and the outer panel of the back door no longer use sheet metal parts, and the traditional stamping dies for the inner panel of the back door and the outer panel of the back door are cancelled, the number of molds is reduced, and the cost is reduced; the weight of the car is reduced, and the fuel consumption is reduced. The hinge reinforcement plate, the pneumatic support rod reinforcement plate and the lock buckle reinforcement plate are pre-buried in the mold when the inner panel of the back door is formed, and fixed on the inner panel of the back door by bonding, eliminating the traditional welding process ,Increase productivity. The outer panel of the back door is bonded to the outer side of the inner panel of the back door, canceling the traditional wrapping and welding process, simplifying the process and improving production efficiency.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (5)

1. An automobile back door assembly, comprising a back door outer panel assembly and a back door inner panel assembly, characterized in that, the back door outer panel assembly comprises a carbon fiber material molded, pultruded The rear door outer panel, the rear door inner panel assembly includes a rear door inner panel molded and pultruded by carbon fiber materials, a hinge reinforcement plate, a pneumatic strut reinforcement plate and a lock buckle reinforcement plate; The hinge reinforcement plate, pneumatic support rod reinforcement plate and lock buckle reinforcement plate are pre-buried in the mold when the back door inner panel is formed, and are fixed on the back door inner panel by bonding; The outer panel of the back door is bonded to the outer side of the inner panel of the back door; The back door inner panel assembly also includes a back door button hand decorative plate fixedly connected to the back door inner panel by bolts; The rear door outer panel assembly also includes a high-position brake light fastener provided on the outer upper part of the rear door outer panel; The back door inner panel assembly also includes a buffer block reinforcement plate, which is pre-embedded in the mold when the back door inner panel is formed, and fixed on the back door inner panel by bonding. 2. The automobile back door assembly according to claim 1, wherein the hinge reinforcement plate comprises a left hinge reinforcement plate and a right hinge reinforcement plate, which are respectively fixed on the left and right sides of the inner panel of the back door. side. 3. The automobile rear door assembly according to claim 1, characterized in that, the pneumatic strut reinforcement plate comprises a left pneumatic strut reinforcement plate and a right pneumatic strut reinforcement plate, which are respectively fixed in the rear door Left and right sides of the middle of the board. 4. The automobile back door assembly according to claim 1, characterized in that, the buffer block reinforcing plate comprises a left buffer block reinforcing plate and a right buffer block reinforcing plate, which are respectively fixed on the lower part of the inner panel of the back door. left and right. 5. An automobile, characterized in that the automobile comprises the automobile rear door assembly according to any one of claims 1-4.

Images