Vehicle door upper section connecting structure
By using the combination of inner window frame reinforcement plate, front door glass front rail and A-pillar guide rail in the upper door connecting structure, and using stamping parts to weld into a whole, the problems of high production costs and difficult to control the product quality of the existing upper door connecting structure are solved, and the effect of reducing costs and improving quality is achieved.
Patent Information
- Application Number
- CN202422142371.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The production cost of the existing upper-section connecting structure of the door is relatively high, and the product quality is difficult to control. Especially under the limitations of the use of the bending process, irregular shrinkage and deformation are prone to occur.
A vehicle door upper section connection structure is adopted, through the combination of inner window frame reinforcement plate, front door glass front rail and A-pillar guide rail, multiple sets of stamping parts are welded into a whole, omitting the bending process and directly welding with A-pillar guide rail.
It reduces the fixed investment cost during development, avoids product quality problems caused by bending, optimizes the welding structure and overlapping methods, and improves the product productivity and quality stability.
Smart Images
Figure CN222933708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile bodies, in particular to an upper door connection structure. Background Art
[0002] The side doors of automobiles are usually divided into frameless doors, integral doors, upper-section doors, and composite doors according to their structures. At present, domestic automobile enterprises mostly use upper-section doors in models with a price below 150,000 yuan to control the development cost. In the development of upper-section doors, the stretch-bending process of roll-formed parts accounts for the highest cost, and the use restrictions of the stretch-bending process are relatively large. After stretch-bending, there is an easy problem of irregular shrinkage deformation, and it is impossible to reserve the design amount in advance, which is not conducive to the matching welding in production and is prone to product quality problems. Therefore, it is necessary to invent a new upper door connection structure. Summary of the Utility Model
[0003] The purpose of the utility model is to provide an upper door connection structure, which is used to solve the problems of relatively high production cost and difficult control of product quality in the existing upper door connection structure.
[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0005] An upper door connection structure includes an inner window frame reinforcement plate, a front door glass front guide rail, and an A-pillar guide rail. A fixed-point mounting plate is fixedly connected to the front side of the inner window frame reinforcement plate. A triangular block mounting plate is fixedly connected to the fixed-point mounting plate. The upper end of the front door glass front guide rail is fixedly connected to the A-pillar guide rail. The side surface of the front door glass front guide rail is fixedly connected to the fixed-point mounting plate and the triangular block mounting plate. The upper ends of the fixed-point mounting plate and the triangular block mounting plate are both fixedly connected to the front side of the A-pillar guide rail.
[0006] Preferably, in combination with the above solution, the fixed-point mounting plate is fixedly connected to the upper part of the front side of the inner window frame reinforcement plate and is connected to the side surface of the inner window frame reinforcement plate facing the outside of the vehicle. The triangular block mounting plate is fixedly connected to the upper part of the fixed-point mounting plate and is connected to the side surface of the fixed-point mounting plate facing the outside of the vehicle. The side surface of the front door glass front guide rail facing the inside of the vehicle is fixedly connected to the fixed-point mounting plate and the triangular block mounting plate respectively.
[0007] Preferably, in combination with the above solution, a first front fixing edge, a first rear fixing edge, and a first lower fixing edge are respectively arranged on the front side, rear side, and lower side of the fixed-point mounting plate. The fixed-point mounting plate is in conformal fit with the front side of the inner window frame reinforcement plate. The first rear fixing edge and the first lower fixing edge are both fixedly connected to the front side of the inner window frame reinforcement plate.
[0008] Preferably, in combination with the above solution, a second front fixing edge, a second rear fixing edge, and an upper fixing edge are respectively provided on the front side, rear side, and upper side of the triangular block mounting plate. The second front fixing edge is fixedly connected to the first front fixing edge, the second rear fixing edge is fixedly connected to the first rear fixing edge, and the upper fixing edge is fixedly connected to the inner wall of the A-pillar guide rail.
[0009] Preferably, in combination with the above solution, an installation notch for inserting the upper fixing edge is formed on the side wall of the A-pillar guide rail.
[0010] Preferably, in combination with the above solution, a plurality of groups of inner triangular block mounting holes are provided on the fixing point mounting plate.
[0011] Preferably, in combination with the above solution, a plurality of groups of outer triangular block mounting holes are provided on the triangular block mounting plate.
[0012] The beneficial effects of the present utility model: Compared with the prior art, the present utility model uses multiple groups of stamping parts welded into a whole. The welding method omits the bending process compared with the traditional structure, reduces the fixed investment cost in development, and at the same time optimizes the welding structure. Since the triangular block area adopts the stamping process, production quality problems such as insufficient bending radius are avoided.
[0013] Hereinafter, the present utility model will be described in more detail with reference to the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a connection structure diagram of the upper part of a car door of the present utility model.
[0015] Figure 2 It is a connection structure diagram of the upper part of a car door of the present utility model in another direction.
[0016] Figure 3 It is a connection structure diagram of the inner window frame reinforcement plate, the fixing point mounting plate, the triangular block mounting plate and the A-pillar guide rail of the present utility model.
[0017] Figure 4 It is an exploded view of a connection structure of the upper part of a car door of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] As Figure 1A connection structure for the upper part of a vehicle door is shown, including an inner window frame reinforcement plate 1, a front door glass front guide rail 4, and an A-pillar guide rail 5. A fixed point mounting plate 2 is fixedly connected to the front side of the inner window frame reinforcement plate 1. A triangular block mounting plate 3 is fixedly connected to the fixed point mounting plate 2. The upper end of the front door glass front guide rail 4 is fixedly connected to the A-pillar guide rail 5. The side surface of the front door glass front guide rail 4 is fixedly connected to the fixed point mounting plate 2 and the triangular block mounting plate 3. The upper ends of the fixed point mounting plate 2 and the triangular block mounting plate 3 are both fixedly connected to the front side of the A-pillar guide rail 5.
[0019] For the convenience of assembling each part, the fixed point mounting plate 2 is fixedly connected to the upper part of the front side of the inner window frame reinforcement plate 1 and is connected to the side surface of the inner window frame reinforcement plate 1 facing the outside of the vehicle. The triangular block mounting plate 3 is fixedly connected to the upper part of the fixed point mounting plate 2 and is connected to the side surface of the fixed point mounting plate 2 facing the outside of the vehicle. The side surface of the front door glass front guide rail 4 facing the inside of the vehicle is fixedly connected to the fixed point mounting plate 2 and the triangular block mounting plate 3 respectively.
[0020] For the convenience of welding and fixing between each part, a first front fixing edge 21, a first rear fixing edge 22, and a first lower fixing edge 23 are respectively arranged on the front side, rear side, and lower side of the fixed point mounting plate 2. The fixed point mounting plate 2 is in conformal fit with the front side of the inner window frame reinforcement plate 1. The first rear fixing edge 22 and the first lower fixing edge 23 are both fixedly connected to the front side of the inner window frame reinforcement plate 1 by welding.
[0021] To better fixedly connect the triangular block mounting plate 3 with the fixed point mounting plate 2, a second front fixing edge 31, a second rear fixing edge 32, and an upper fixing edge 33 are respectively arranged on the front side, rear side, and upper side of the triangular block mounting plate 3. The second front fixing edge 31 is fixedly connected to the first front fixing edge 21 by welding. The second rear fixing edge 32 is fixedly connected to the first rear fixing edge 22 by welding. The upper fixing edge 33 is fixedly connected to the inner wall of the A-pillar guide rail 5 by welding.
[0022] To prevent interference problems during assembly, an installation notch 51 for inserting the upper fixing edge 33 is provided on the side wall of the A-pillar guide rail 5.
[0023] To facilitate the installation of the inner triangular block on the inner side of the fixed point mounting plate 2 by means of a buckle, a number of groups of inner triangular block mounting holes 24 are provided on the fixed point mounting plate 2. The inner triangular block mounting holes 24 are buckle mounting holes. Installation bosses can be provided at corresponding positions, and inner triangular block mounting holes 24 are opened on the installation bosses to increase the structural stiffness.
[0024] In order to facilitate the installation of the outer triangle block on the outer side of the triangle block mounting plate 3 by buckle, the triangle block mounting plate 3 is provided with a plurality of groups of outer triangle block mounting holes 34. The outer triangle block mounting holes 34 are also buckle mounting holes, and mounting bosses can also be provided at corresponding positions, and outer triangle block mounting holes 34 are provided on the mounting bosses to increase structural rigidity.
[0025] Traditional upper door uses the development bending process. Considering the cost, the price of the bending die is much higher than the rolling die. If the bending die is added to the whole set of upper die, the cost of each piece will increase a lot. From the production point of view, there is a problem of shrinkage deformation after bending. The deformation often reaches 3-5mm or even more. The shrinkage deformation is irregular and the design amount cannot be reserved in advance, which is very unfavorable for matching welding in formal production. In production, the allowable tolerance for the entire door assembly is only ±0.5mm.
[0026] The utility model does not bend the A-pillar guide rail at the front door triangle block, but adopts a structure in which the A-pillar guide rail is cut off and then welded with a stamping assembly. The stamping parts are divided into a fixed point mounting plate 2 and a triangle block mounting plate 3 (rearview mirror mounting plate). The fixed point mounting plate 2 is stamped and formed using a 1mm thick DC steel plate, and the triangle block mounting plate 3 is stamped and formed using a 1.2mm thick DC steel plate. The stamping parts are used to make the bending effect required for the appearance, and then welded with the A-pillar guide rail 5, which can eliminate the bending process of the A-pillar guide rail 5, effectively saving the development cost of the vehicle, and avoiding product quality problems caused by bending, while also optimizing the overlap method of the welding point.
[0027] During assembly, the fixing point mounting plate 2, the triangular block mounting plate 3 and the front door glass front guide rail 4 are first welded into a small assembly, and then the small assembly is respectively welded with the A-pillar guide rail 5 and the inner window frame reinforcement plate 1 to form a large assembly.
[0028] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.
[0029] The utility model is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions, they all fall within the protection scope of the utility model.
Claims
1. A vehicle door upper section connection structure, comprising an inner window frame reinforcement plate (1), a front door glass front guide rail (4), and an A-pillar guide rail (5), wherein: The front side of the inner window frame reinforcement plate (1) is fixedly connected to a fixed point mounting plate (2), the fixed point mounting plate (2) is fixedly connected to a triangular block mounting plate (3), the upper end of the front door glass front guide rail (4) is fixedly connected to the A-pillar guide rail (5), and the side of the front door glass front guide rail (4) is fixedly connected to the fixed point mounting plate (2) and the triangular block mounting plate (3); the upper ends of the fixed point mounting plate (2) and the triangular block mounting plate (3) are both fixedly connected to the front side of the A-pillar guide rail (5).
2. The door upper section connection structure according to claim 1, characterized in that: The fixed point mounting plate (2) is fixedly connected to the upper front part of the inner window frame reinforcement plate (1), and is connected to the side of the inner window frame reinforcement plate (1) facing the outside of the vehicle; the triangular block mounting plate (3) is fixedly connected to the upper part of the fixed point mounting plate (2), and is connected to the side of the fixed point mounting plate (2) facing the outside of the vehicle; the side of the front door glass front guide rail (4) facing the inside of the vehicle is fixedly connected to the fixed point mounting plate (2) and the triangular block mounting plate (3) respectively.
3. The vehicle door upper section connection structure according to claim 2, characterized in that: The front side, rear side and lower side of the fixing point mounting plate (2) are respectively provided with a first front fixing edge (21), a first rear fixing edge (22) and a first lower fixing edge (23); the fixing point mounting plate (2) is conformally matched with the front side of the inner window frame reinforcement plate (1); the first rear fixing edge (22) and the first lower fixing edge (23) are both fixedly connected to the front side of the inner window frame reinforcement plate (1).
4. The door upper section connection structure according to claim 3, characterized in that: The front side, rear side and upper side of the triangular block mounting plate (3) are respectively provided with a second front fixed edge (31), a second rear fixed edge (32) and an upper fixed edge (33); the second front fixed edge (31) is fixedly connected to the first front fixed edge (21); the second rear fixed edge (32) is fixedly connected to the first rear fixed edge (22); and the upper fixed edge (33) is fixedly connected to the inner wall of the A-pillar guide rail (5).
5. The vehicle door upper section connection structure according to claim 4, characterized in that: A mounting notch (51) for inserting the upper fixing edge (33) is provided on the side wall of the A-pillar guide rail (5).
6. The vehicle door upper section connection structure according to claim 1, characterized in that: The fixed point mounting plate (2) is provided with a plurality of groups of inner triangular block mounting holes (24).
7. The vehicle door upper section connection structure according to claim 1, characterized in that: The triangular block mounting plate (3) is provided with a plurality of groups of external triangular block mounting holes (34).