Automobile door lower trim panel assembly structure

Abstract

The utility model relates to the field of automobile door lower trim panel assemblies, in particular to an automobile door lower trim panel assembly structure. Comprising a door lower trim panel, the door lower trim panel is arranged at the bottom of a vehicle door and is installed and fixed through a fastening part, the door lower trim panel is provided with a door lower trim panel outer plate, one face of the door lower trim panel outer plate is a smooth arc face, and the other face of the door lower trim panel outer plate is provided with a plurality of puncture welding face tables, buckle anti-disengaging structures and buckle structures. The buckle anti-falling structures and the buckle structures are arranged in a mutually separated manner; a door lower trim panel side panel is arranged on the side face of the door lower trim panel outer panel, the door lower trim panel side panel is a cambered surface enveloped along the opening and closing movement of the rear door lower trim panel, and the wall thickness is reduced to prevent the surface from shrinking at the joint of the door lower trim panel outer panel and the door lower trim panel side panel. The appearance beautification of the surface of the side face decoration plate is achieved after paint spraying, the problem that the qualified rate of assembly parts is low due to accumulated tolerance at the parting position of a product is solved, the matching requirement of the appearance is met, manufacturing is convenient, and industrial mass production is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of automobile door lower trim panel assembly, in particular to an automobile door lower trim panel assembly structure. Background Art

[0002] Door trim, in automobile construction, usually refers to the decorative and protective parts under the door. These parts not only have decorative functions, but also bear the functions of protecting the car body, improving sealing, dustproof, waterproof and soundproofing. Figure 3 As shown, it is a schematic diagram of the existing side surface of the door lower trim panel and the movement envelope of the rear door lower trim panel switch. It can be seen that in the prior art, the side panel of the door lower trim panel is vertically arranged with the outer panel. The right angle arrangement of the side panel and the outer panel is not easy to spray paint during the production process. The problem of false spraying occurs on the straight surface part, and it is necessary to spray from the side angle, which increases the spraying time and reduces the production efficiency of the product. At the same time, there are many gaps in the middle of the movement envelope of the rear door lower trim panel switch. In the prior art, a shielding rib design is often provided on the side, which increases the production process, thus increasing the production cost. At the same time, if it is not installed in place, it is easy to cause water to enter the gap or some small stones to be stuck, resulting in poor sealing.

[0003] It is particularly important to design an automobile door lower trim assembly structure that does not require additional shielding ribs and in which the side of the door lower trim panel and the movement envelope of the rear door lower trim panel switch are well matched. Utility Model Content

[0004] The present application provides a lower door trim assembly structure for an automobile, which adopts the following technical solution:

[0005] A lower door trim assembly structure for an automobile includes a lower door trim, which is arranged at the bottom of a vehicle door and fixed by a fastening component. The lower door trim is provided with an outer panel, one side of which is a smooth arc surface, and the other side is provided with a plurality of puncture welding platforms, snap-on anti-detachment structures and snap-on structures, and the puncture welding platforms, snap-on anti-detachment structures and snap-on structures are arranged spaced apart from each other; a lower door trim side panel is provided on the side of the lower door trim outer panel, the lower door trim side panel is an arc surface that is enveloped along the movement of the rear lower door trim switch, and the connection between the lower door trim outer panel and the lower door trim side panel is arranged to reduce the wall thickness to prevent surface shrinkage.

[0006] Optionally, a raised male buckle is provided on the buckle structure, and a recessed female buckle is provided on the bottom of the vehicle door. During installation, the male buckle on the buckle structure is inserted into the female buckle on the bottom of the vehicle door. Both the female buckle and the male buckle are designed with guide bevels to guide the buckling direction.

[0007] Optionally, the piercing welding table is a square table top.

[0008] Optionally, the buckle anti - detachment structure is a raised small block. The inside of the small block is hollowed out. There is a sunken groove on one side of the top surface of the small block, with a height difference between the upper and lower parts. At the same time, an elliptical small hole is provided on the top of the small block, and the elliptical small hole is connected to the sunken groove to form a passage.

[0009] Optionally, the movement gap between the door lower trim panel and the rear door lower trim panel switch movement envelope after the door lower trim panel is opened is 3 mm.

[0010] Optionally, the reduced wall thickness is 0.88 mm and the length is 2 mm.

[0011] Optionally, the height difference of the arc surface of the side panel of the door lower trim panel is 10 mm.

[0012] Optionally, the size of the door lower trim panel is 1100 mm.

[0013] Optionally, the material of the door lower trim panel is made of PP + EPDM - TD20.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The side panel of the door lower trim panel is designed as a complete arc surface along the rear door lower trim panel switch movement envelope. At the same time, after painting, the appearance of the side trim panel surface is beautified. It has strong manufacturability, and there is no need to set an additional shielding rib design, saving additional materials. The improvement of the side panel of the door lower trim panel in this technology does not require additional parts to assist, saving costs. At the same time, it solves the problem that the qualified rate of the assembly parts is relatively low due to the cumulative tolerance after multiple processes at the product seam position, and facilitates the welding positioning of the parts and reduces the requirements for the size of a single part. It can not only meet the appearance matching requirements, but also the process is controllable and reduces the requirements for the relative position dimensions of the inner and outer panels. This product is easy to manufacture and suitable for large - scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will discuss the drawings required for use in the description of the embodiments or the prior art. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments and their drawings can be obtained based on these embodiments shown in the drawings.

[0016] Figure 1 It is a structural diagram of the inner plate of the prior art of an automotive door lower trim panel assembly of the present utility model.

[0017] Figure 2 It is an internal structural diagram of an automotive door lower trim panel assembly of the present utility model.

[0018] Figure 3 It is an enlarged view of A of an automotive door lower trim panel assembly structure of the present utility model.

[0019] Figure 4 This is a side view of the lower door trim assembly structure of an existing technology of the utility model for an automobile lower door trim.

[0020] Figure 5 This is a schematic diagram of the side of the lower door trim and the movement envelope of the utility model for an automobile lower door trim assembly structure.

[0021] Figure 6 This is a schematic diagram of the side of the lower door trim and the dimension markings of the movement envelope of the utility model for an automobile lower door trim assembly structure.

[0022] In the figure: 1 - outer panel of the lower door trim, 2 - side panel of the lower door trim, 3 - piercing welding surface platform, 4 - anti - detachment structure for the buckle, 5 - movement envelope of the rear door lower door trim switch, 6 - buckle structure. Detailed implementation manners

[0023] The technical solutions of each embodiment of the present 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 the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts are within the scope protected by the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] An embodiment of the present utility model provides a structure of an automobile lower door trim assembly.

[0027] Such as Figures 1-6As shown in the figure, a structure of an automobile door lower trim panel assembly includes a door lower trim panel. The door lower trim panel is installed at the bottom of the door and fixed by fastening components. The door lower trim panel is provided with an outer panel 1 of the door lower trim panel. One side of the outer panel 1 of the door lower trim panel is a smooth arc surface for decorating the door. On the other side, there are several piercing welding surface platforms 3, a buckle anti - detachment structure 4 and a buckle structure 6. And the piercing welding surface platforms 3, the buckle anti - detachment structure 4 and the buckle structure 6 are arranged separately from each other. The buckle structure 6 is provided with a protruding male buckle, and a recessed female buckle is provided at the bottom of the door. During installation, the male buckle on the buckle structure 6 is inserted into the female buckle at the bottom of the door. Both the female buckle and the male buckle are designed with guiding chamfers to guide the buckling direction. The piercing welding surface platform 3 is a square tabletop. The buckle anti - detachment structure 4 is a protruding small block with a hollow interior. On one side of the top surface of the small block, there is a recessed groove. There is a height difference between the upper and lower parts. At the same time, an elliptical small hole is provided on the top of the small block, and the elliptical small hole is connected to the recessed groove to form a passage. During installation, the corresponding buckle anti - detachment structure 4 on the door is buckled into the groove and fixed. The side of the buckle anti - detachment structure 4 is provided with a reinforcing rib for fixation.

[0028] On the side surface of the outer panel 1 of the door lower trim panel, there is a side panel 2 of the door lower trim panel. As Figure 3 shown, the connection between the side panel 2 of the door lower trim panel and the outer panel 1 of the door lower trim panel is at an angle with the straight surface. After installation, there is a large gap with the movement envelope 5 of the rear door lower trim panel switch on the automobile, and the size of the gap is not uniform. Now, the side panel 2 of the door lower trim panel is designed as an arc surface along the movement envelope 5 of the rear door lower trim panel switch. As Figure 6 shown, the mark B is that the movement gap between the door lower trim panel and the movement envelope of the rear door lower trim panel switch after the door lower trim panel is opened is 3mm. The distance between the side panel 2 of the door lower trim panel and the movement envelope 5 of the rear door lower trim panel switch when opened is set, and the large distance between the existing door lower panel and the movement envelope 5 of the rear door lower trim panel switch is alleviated. The mark C is that the wall thickness is reduced at the connection between the outer panel 1 of the door lower trim panel and the side panel 2 of the door lower trim panel to prevent surface shrinkage. The reduced wall thickness is 0.88mm and the length is 2mm. The mark D is that the height difference of the arc surface of the side panel 2 of the door lower trim panel is 10mm, which is also the spraying range of the side of the door lower trim panel. The side panel 2 of the door lower trim panel is set as an arc surface, which is convenient for spraying. Unlike the existing situation where spraying at the right - angle gap is uneven and prone to virtual spraying, and multiple sprays are required, resulting in an increase in manufacturing cost and time. The size of the door lower trim panel is 1100mm, and the material of the door lower trim panel is made of PP + EPDM - TD20, which solves the problem that the qualified rate of the assembly parts is low due to cumulative tolerance after multiple processes at the product joint position, and is convenient for part welding positioning and reduces the requirements for the size of single - piece parts, which can not only meet the appearance matching requirements, but also make the process controllable and reduce the requirements for the relative position dimensions of the inner and outer panels. This product is easy to manufacture and suitable for large - scale industrial production.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automobile door lower trim assembly structure, characterized in that: The door lower trim panel comprises a door lower trim panel, which is installed at the bottom of the vehicle door and fixed by a fastening component. The door lower trim panel is provided with a door lower trim panel outer panel (1), one side of the door lower trim panel outer panel (1) is a smooth arc surface, and the other side is provided with a plurality of puncture welding surface platforms (3), buckle anti-detachment structures (4) and buckle structures (6), and the puncture welding surface platforms (3), buckle anti-detachment structures (4) and buckle structures (6) are arranged in a spaced relationship from each other. A door lower trim panel side panel (2) is arranged on the side of the door lower trim panel outer panel (1), the door lower trim panel side panel (2) is an arc surface along the movement envelope (5) of the rear door lower trim panel switch, and the connection between the door lower trim panel outer panel (1) and the door lower trim panel side panel (2) is arranged to reduce the wall thickness to prevent surface shrinkage.

2. The automobile door lower trim assembly structure according to claim 1, characterized in that: A protruding male buckle is provided on the buckle structure (6), and a recessed female buckle is provided on the bottom of the vehicle door. During installation, the male buckle on the buckle structure (6) is inserted into the female buckle on the bottom of the vehicle door. Both the female buckle and the male buckle are designed with guiding bevels to guide the buckling direction.

3. The automobile door lower trim assembly structure according to claim 1, characterized in that: The puncture welding table (3) is a square table top.

4. The automobile door lower trim assembly structure according to claim 1, characterized in that: The buckle anti-slip structure (4) is a raised small block, the interior of the small block is hollowed out, a concave groove is arranged on one side of the top surface of the small block, and there is a height difference between the top and the bottom. At the same time, an elliptical small hole is arranged on the top of the small block, and the elliptical small hole and the concave groove are connected together to form a passage.

5. The automobile door lower trim assembly structure according to claim 1, characterized in that: After the door lower trim panel is opened, the movement gap between the door lower trim panel switch movement envelope (5) is 3 mm.

6. The automobile door lower trim assembly structure according to claim 1, characterized in that: The wall thickness is 0.88mm and the length is 2mm.

7. The automobile door lower trim assembly structure according to claim 1, characterized in that: The height difference of the curved surface of the side panel (2) of the door lower trim is 10 mm.

8. The automobile door lower trim assembly structure according to claim 1, characterized in that: The door lower trim measures 1100mm.

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