CN219406114U - Automobile back door skeleton structure - Google Patents

Abstract

The utility model belongs to the automobile back door skeleton structure in the technical field of automobile back doors. The window frame (9) is arranged above the rear door inner panel (1), the rear door hinge reinforcement plate (2) is located above the rear door inner panel (1), the rear door gas spring reinforcement plate (3) is located at the waist line of the rear door inner panel (1), the rear door gas spring reinforcement plate (3) fits the arc line of the rear door inner panel (1), the rear door support lower bracket (7) is located in the support cavity of the lower half of the rear door inner panel (1), and the door lock reinforcement plate (8) Located below the back door inner panel (1). The car back door frame structure described in the utility model reduces the window frame reinforcement plate, realizes vehicle lightweighting, improves the bending and torsional modes of the back door frame, improves the ability to resist vibration risks, improves the overall performance of the car door, and finally meets the modeling design, vehicle NVH performance and lightweight goals.

Description

Automobile rear door frame structure

technical field

The utility model belongs to the technical field of automobile back doors, and more specifically relates to an automobile back door skeleton structure.

Background technique

With the development of automobile technology, customers have higher and higher requirements for vehicle styling and vehicle NVH performance. The through-type taillights on the back door of the vehicle have become the highlights of many vehicles. At the same time, improving the NVH performance of the vehicle is closely related to enhancing the market competitiveness of the product. According to the traditional car back door design, the back door inner panel and the window frame reinforcement plate are divided into two parts, which easily exceeds the lightweight target. The back door inner panel narrows the cavities at both ends of the window frame for the shape, and designs weight-reducing holes, but it is difficult to meet the requirements of the stiffness mode. During driving, the back door vibration is easily caused by the impact of the road excitation, causing roaring noise to users. In the prior art, the modal is improved mainly by increasing the thickness of the reinforcement and the inner panel, which will lead to an increase in the weight and cost of the back door, which is not conducive to the lightweight of the whole vehicle and the improvement of market competitiveness.

Utility model content

The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, to provide a structure with a simple structure, compared with the prior art car back door design, reducing the window frame reinforcement plate, realizing vehicle lightweight, significantly improving the bending and torsional mode of the back door frame, improving the ability to resist vibration risks, improving the overall performance of the car door, and finally meeting the shape design, vehicle NVH performance and lightweight goals of the car back door frame structure.

To solve the technical problems described above, the technical solution that the utility model takes is:

The utility model relates to an automobile back door frame structure, comprising a back door inner panel, the back door inner panel includes an upper half section above the waistline and a lower half section below the waistline, a window frame is arranged above the back door inner panel, a back door hinge reinforcement plate is located above the back door inner panel, a back door gas spring reinforcement plate is located at the waist line of the back door inner panel, a back door gas spring reinforcement plate fits the arc line of the back door inner panel waistline, a back door support lower bracket is located under the back door inner panel In the half section of the supporting cavity, the door lock reinforcement plate is located under the inner panel of the back door.

A rear door hinge reinforcement plate is respectively arranged on the left side and the right side above the rear door inner panel, and each rear door hinge reinforcement plate is welded to the rear door inner panel respectively.

A rear door gas spring reinforcing plate is provided on the left side and right side of the waistline of the rear door inner panel, and each rear door gas spring reinforcing plate is welded to the rear door inner panel respectively.

The waistline position of the back door inner panel is also provided with a back door support upper bracket and a wiper motor reinforcement plate, and the back door support upper bracket and the wiper motor reinforcement plate are respectively welded and connected to the back door inner panel.

A rear door tail light mounting plate is respectively arranged on the left side outer side and the right side outer side of the waistline of the back door inner panel, the back door tail light installation plate is connected with the back door outer panel through glue, and the back door tail light installation plate is welded and connected with the back door inner panel and the back door gas spring reinforcement plate at the same time.

Each side of the lower half of the inner panel of the back door is respectively provided with a support cavity, and each support cavity is respectively connected with a support lower part of the back door through welding points.

The upper half of the inner panel of the back door includes wiring harness holes, hinge mounting holes, window frames and weight-reducing holes, and a plurality of characteristic holes are also arranged on the upper half of the inner panel of the back door.

The lower half of the inner panel of the back door includes an upper weight-reducing hole, a lower weight-reducing hole, support ribs and characteristic holes, and deep ribs are arranged around the weight-reducing hole.

The support ribs close to the central axis of the rear door inner panel are connected to the rear door outer panel through welding points, the support ribs near the outer side of the rear door inner panel are connected to the rear door outer panel by glue, and the characteristic holes in the lower half of the rear door inner panel are distributed on the waistline.

Adopt the technical solution of the utility model, working principle and beneficial effect are as follows:

The car back door frame structure described in the utility model is a new car back door frame structure. In order to maintain the shape design and improve the NVH performance requirements, the window frame reinforcement plate of the traditional car back door is cancelled. The back door inner panel and the window frame reinforcement plate of the back door are no longer divided into two parts. Combined with the stamping process, the back door inner panel is formed by stamping, and the window frame is directly formed on the back door inner panel. , Extend the gas spring reinforcement plate of the back door to the upper and lower sections, increase the support upper bracket of the back door and arrange the deep convex ribs, enhance the rigidity of the back door frame, increase the overall mode of the back door by 6Hz, and improve the NVH performance of the back door. The car back door frame structure described in the utility model has a simple structure. Compared with the car back door design in the prior art, the window frame reinforcement plate is reduced, the weight of the vehicle is realized, the bending and torsional modes of the back door frame are significantly improved, the ability to resist vibration risks is improved, the overall performance of the car door is improved, and finally the shape design, vehicle NVH performance and lightweight goals are met.

Description of drawings

The following is a brief description of the contents expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is the structural representation of the skeleton structure of the automobile back door described in the utility model;

Fig. 2 is the structural schematic diagram of the skeleton structure of the automobile back door described in the utility model;

The marks in the accompanying drawings are: 1-back door inner panel, 2-back door hinge reinforcement plate, 3-back door gas spring reinforcement plate, 4-back door support upper bracket, 5-back door tail light installation plate, 6-wiper motor reinforcement plate, 7-back door support lower bracket, 8-door lock reinforcement plate, 9-window frame, 10-waistline, 11-upper weight-reducing hole, 12-lower weight-reducing hole, 13-support rib, 14-characteristic hole.

Detailed ways

Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between each part, the role and working principle of each part, etc. of the utility model are further described in detail:

As shown in accompanying drawings 1 and 2, the utility model is a car back door skeleton structure, including a back door inner panel 1. The back door inner panel 1 includes the upper half above the waist line 10 and the lower half below the waist line 10. A window frame 9 is arranged above the back door inner panel 1. The back door hinge reinforcement plate 2 is located above the back door inner panel 1. The back door gas spring reinforcement plate 3 is located at the waist line of the back door inner panel 1. The back door gas spring reinforcement plate 3 fits on the waist of the back door inner panel 1. The arc arrangement of the line position, the back door support lower bracket 7 is located in the support cavity of the lower half of the back door inner panel 1, and the door lock reinforcement plate 8 is located below the back door inner panel 1. The above structure proposes an improved structure aiming at the deficiencies in the prior art. The utility model designs a new car back door skeleton structure. Aiming at the requirements of maintaining the shape design and improving NVH performance, the window frame reinforcement plate of the traditional car back door is cancelled. The back door inner panel and the window frame reinforcement plate of the back door are no longer divided into two parts. Combined with the stamping process, the back door inner panel is stamped and formed, and the back door inner panel directly forms the window frame, and then different reinforcement plates are set at different positions, and the cavity size of the middle position of the back door inner panel waistline is increased, and the back door gas spring is extended upward and downward. Reinforcing plate 3, adding the method of supporting the upper bracket 4 of the back door and arranging deep ribs, enhancing the rigidity of the back door frame, increasing the overall mode of the back door by 6Hz, and improving the NVH performance of the back door. The car back door frame structure described in the utility model has a simple structure. Compared with the car back door design in the prior art, the window frame reinforcement plate is reduced, the weight of the vehicle is realized, the bending and torsional modes of the back door frame are significantly improved, the ability to resist vibration risks is improved, the overall performance of the car door is improved, and finally the shape design, vehicle NVH performance and lightweight goals are met.

A rear door hinge reinforcement plate 2 is respectively arranged on the left side and the right side above the rear door inner panel 1 , and each rear door hinge reinforcement plate 2 is welded to the rear door inner panel 1 respectively. In the above structure, the two rear door hinge reinforcement plates 2 are symmetrically arranged to strengthen the strength of the hinge.

A rear door gas spring reinforcing plate 3 is arranged on the left side and the right side of the waistline of the back door inner panel 1 respectively, and each back door gas spring reinforcing plate 3 is connected to the back door inner panel 1 by welding spots respectively. In the above structure, the two rear door gas spring reinforcing plates 3 are symmetrically arranged to strengthen the strength of the gas spring.

The waistline 10 of the back door inner panel 1 is also provided with a back door support upper bracket 4 and a wiper motor reinforcement plate 6, and the back door support upper bracket 4 and the wiper motor reinforcement plate 6 are welded to the back door inner panel 1 respectively. In the above structure, the rear door support upper bracket 4 and the wiper motor reinforcing plate 6 are symmetrically arranged respectively, and reliable fixed connection is realized by welding.

The waistline 10 of the back door inner panel 1 is provided with a back door tail light mounting plate 5 on the left side and the right side outside respectively. The back door tail light mounting plate 5 is connected with the back door outer panel 1 through glue, and the back door tail light installation plate 5 is welded and connected with the back door inner panel 1 and the back door gas spring reinforcement plate 3 respectively at the same time. In the above structure, the two back door and tail light mounting plates 5 are symmetrically arranged, and the back door and tail light mounting plates 5 are first connected by glue and then welded, so that they are reliably connected.

Each side of the lower half of the back door inner panel 1 is respectively provided with a supporting cavity, and a back door supporting lower bracket 7 is respectively connected to each supporting cavity through a welding spot. In the above structure, the supporting cavity is a part of the inner panel of the back door, which is formed when the back door is formed and cannot be processed separately. And when connecting each parts after the back door inner panel is processed, connect the back door support lower support 7.

The upper half of the back door inner panel 1 includes wiring harness holes, hinge mounting holes, window frames 9 and weight-reducing holes, and a plurality of feature holes 14 are also provided in the upper half of the back door inner panel 1 . The lower half of the back door inner panel 1 includes an upper weight reduction hole 11, a lower weight reduction hole 12, a support rib 13 and a characteristic hole 14, and deep convex ribs are arranged around the weight reduction hole. The support ribs 13 close to the central axis of the back door inner panel 1 are connected to the back door outer panel 1 through welding points, and the support ribs 13 near the outer side of the back door inner panel 1 are connected to the back door outer panel 1 through glue, and the characteristic holes 14 in the lower half of the back door inner panel 1 are distributed on the waistline. In the above structure, the back door inner panel 1 is an integrated structure, including the upper half section above the waist line 10 and the lower half section below the waist line 10, the window frame is located in the upper half section, and the upper half section and the lower half section are respectively provided with different structures according to requirements to form a back door that meets the requirements.

The car back door skeleton structure described in the utility model, 1. Compared with the traditional car back door design, the window frame reinforcement plate is reduced, which can realize the lightweight of the vehicle. 2. Compared with the traditional car back door design, it retains the shape design and improves the market competitiveness. 3. The bending and torsional modes of the rear door frame are significantly improved, and the ability to resist vibration risks is improved.

The car back door frame structure described in the utility model is a new car back door frame structure. In order to maintain the shape design and improve the NVH performance requirements, the window frame reinforcement plate of the traditional car back door is cancelled. The back door inner panel and the window frame reinforcement plate of the back door are no longer divided into two parts. Combined with the stamping process, the back door inner panel is formed by stamping, and the window frame is directly formed on the back door inner panel. , Extend the gas spring reinforcement plate of the back door to the upper and lower sections, increase the support upper bracket of the back door and arrange the deep convex ribs, enhance the rigidity of the back door frame, increase the overall mode of the back door by 6Hz, and improve the NVH performance of the back door. The car back door frame structure described in the utility model has a simple structure. Compared with the car back door design in the prior art, the window frame reinforcement plate is reduced, the weight of the vehicle is realized, the bending and torsional modes of the back door frame are significantly improved, the ability to resist vibration risks is improved, the overall performance of the car door is improved, and finally the shape design, vehicle NVH performance and lightweight goals are met.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method. As long as the various improvements of the method concept and the technical solution of the utility model are adopted, or the concept of the utility model and the technical solution are directly applied to other occasions without improvement, all within the scope of protection of the utility model.

Claims (9)

1. A car back door frame structure, characterized in that it includes a back door inner panel, the back door inner panel includes the upper half above the waistline (10) and the lower half below the waistline (10), a window frame (9) is arranged above the back door inner panel, the back door hinge reinforcement plate (2) is located above the back door inner panel, the back door gas spring reinforcement plate (3) is located at the waistline position of the back door inner panel, and the back door gas spring reinforcement plate fits the waistline position of the back door inner panel Arranged in an arc, the back door support lower bracket (7) is located in the support cavity of the lower half of the back door inner panel, and the door lock reinforcement plate (8) is located below the back door inner panel. 2. The automobile back door skeleton structure according to claim 1, characterized in that: a back door hinge reinforcing plate (2) is respectively arranged on the left side and right side above the back door inner panel, and each back door hinge reinforcing plate (2) is welded and connected with the back door inner panel respectively. 3. The automobile back door frame structure according to claim 1 or 2, characterized in that: the left side and the right side of the waist line of the back door inner panel are respectively provided with a back door gas spring reinforcing plate (3), and each back door gas spring reinforcing plate (3) is connected to the back door inner panel by welding spots. 4. The car back door skeleton structure according to claim 1 or 2, characterized in that: the waistline (10) of the back door inner panel is further provided with a back door support upper bracket (4) and a wiper motor reinforcing plate (6), and the back back door supporting upper bracket (4) and the wiper motor reinforcing plate (6) are respectively welded and connected to the back door inner panel. 5. The automobile back door frame structure according to claim 1 or 2, characterized in that: a back door tail light mounting plate (5) is respectively arranged on the left side and right side outside of the waist line (10) of the back door inner panel, the back door tail light mounting plate (5) is connected with the back door outer panel by glue, and the back door tail light installation plate (5) is welded to the back door inner panel and the back door gas spring reinforcement plate (3) respectively at the same time. 6. The automobile back door skeleton structure according to claim 1 or 2, characterized in that: each side of the lower half of the back door inner panel is respectively provided with a supporting cavity, and a back door supporting lower bracket (7) is respectively connected to each supporting cavity through welding points. 7. The automobile back door skeleton structure according to claim 1, characterized in that: the upper half of the back door inner panel includes wiring harness holes, hinge mounting holes, window frames (9) and lightening holes, and a plurality of characteristic holes (14) are also arranged in the upper half of the back door inner panel. 8. The car back door frame structure according to claim 7, characterized in that: the lower half of the back door inner panel includes an upper weight reduction hole (11), a lower weight reduction hole (12), a support rib (13) and a feature hole (14), and deep convex ribs are arranged around the weight reduction hole. 9. The automobile back door frame structure according to claim 8, characterized in that: the support ribs (13) close to the central axis of the back door inner panel are connected to the back door outer panel through welding points, the support ribs (13) near the outside of the back door inner panel are connected to the back door outer panel through glue, and the characteristic holes (14) in the lower half of the back door inner panel are distributed on the waistline.