Doghouse buckle base structure for improving surface indentation of automotive interior and exterior product and automotive interior and exterior product

Abstract

The utility model relates to a doghouse buckle base structure for improving the surface shrinkage of automobile interior and exterior product and automobile interior and exterior product, doghouse buckle base structure includes doghouse body, buckle base connecting rib piece, doghouse body all is suspended, makes the bottom surface of doghouse body and the B surface of automobile interior and exterior product surface keep the gap, and the both sides interval of doghouse body is provided with three buckle base connecting rib pieces, and the closed end of doghouse body is equipped with two buckle base connecting rib pieces, the bottom surface of buckle base connecting rib piece is connected with the B surface of automobile interior and exterior product surface, and the connection of doghouse body and car interior and exterior product is realized through the buckle base connecting rib piece of eight claw distribution. This structure can use in single layer board, and can improve the shrinkage effect simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing and relates to automobile interior and exterior products. Specifically, it relates to a doghouse buckle base structure for improving the surface shrinkage of automobile interior and exterior products and automobile interior and exterior products. Background Technology

[0002] Currently, when automotive interior and exterior trim products have a doghouse clip-on base structure directly on the B-side, these structures cause localized areas to cool slower while other areas cool faster. This uneven cooling leads to different material shrinkage rates, resulting in shrinkage marks on the A-side. Since many parts undergo painting after injection molding, this paint finish amplifies the shrinkage defects, causing poor surface quality. To address this shrinkage issue, most car models often employ a double-layer design, meaning the product is divided into two layers (see...). Figure 1 The doghouse buckle base structure 3 extends onto the inner panel 1, and then the inner panel 1 is bonded or welded to the outer panel 2, preventing the doghouse buckle base structure from extending directly onto the product surface, thus achieving a product appearance without shrinkage. However, since the double-layer board requires a separate mold, the resulting increase in product cost and difficulty in meeting weight requirements. Summary of the Invention

[0003] To optimize the shrinkage of injection molded parts caused by the Doghouse buckle base extending directly onto the B-side of automotive interior and exterior products, and to address the increased cost and weight resulting from the use of double-layer boards, this utility model provides a Doghouse buckle base structure that improves the shrinkage effect on the surface of automotive interior and exterior products. This structure can be used on single-layer boards while improving the shrinkage effect.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A doghouse snap-fit ​​base structure for improving surface shrinkage of automotive interior and exterior trim products includes a doghouse body and snap-fit ​​base connecting ribs. The doghouse body is completely suspended, maintaining a gap between the bottom surface of the doghouse body and the B-side of the automotive interior and exterior trim product. Three snap-fit ​​base connecting ribs are spaced apart on both sides of the doghouse body, and two snap-fit ​​base connecting ribs are provided at the closed end of the doghouse body. The bottom surface of the snap-fit ​​base connecting ribs is connected to the B-side of the automotive interior and exterior trim product. The connection between the doghouse body and the automotive interior and exterior trim product is achieved through the snap-fit ​​base connecting ribs distributed in an octagonal pattern.

[0006] As a preferred embodiment of this utility model, the thickness of the buckle base connecting rib does not exceed 1 / 3 of the wall thickness of the automotive interior and exterior trim product, and the length of the connection between the buckle base connecting rib and the automotive interior and exterior trim product, that is, the length of the bottom surface of the buckle base connecting rib, is controlled within 3-5mm.

[0007] This utility model also provides an automotive interior and exterior trim product, which is a single-panel structure, and the B-side of the surface of the automotive interior and exterior trim product is provided with the aforementioned doghouse buckle base structure.

[0008] As a preferred embodiment of this invention, the automotive interior and exterior trim products include automotive door sills.

[0009] Advantages and beneficial effects of this utility model:

[0010] (1) The doghouse buckle base structure provided by this utility model suspends the bottom of the doghouse completely and connects it to the surface of the car interior and exterior products only by the spaced thin buckle base connecting ribs. This reduces the shrinkage problem caused by uneven material shrinkage during the injection molding process and avoids the cost and weight problem of designing a double-layer board due to shrinkage.

[0011] (2) This utility model connects the doghouse body to the car interior and exterior products by means of a buckle base with an octagonal distribution. This not only ensures the stability of the doghouse but also solves the shrinkage problem. The product quality is easy to control, the pass rate is high, and it is conducive to lightweight design.

[0012] (3) The structure provided by this utility model is applicable to all injection-molded automotive interior and exterior products and is worth promoting and using. Attached Figure Description

[0013] Figure 1 A cross-sectional view of existing automotive interior and exterior trim products with a doghouse clip-on base structure;

[0014] Figure 2 This is a schematic diagram of a car door sill using the doghouse buckle base structure of this utility model;

[0015] Figure 3 for Figure 2 Enlarged view of the structure for installing the doghouse clip base;

[0016] Figure 4 for Figure 3 Sectional view along AA (section of the connection between the snap-fit ​​base connecting ribs);

[0017] Figure 5 for Figure 3 Sectional view along BB (section of the connection point of the base without snap fasteners).

[0018] Attached labels: 1. Car door sill; 2. Doghouse buckle base structure; 3. Buckle; 2-1. Doghouse body; 2-2. Connecting buckle base connecting rib. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] like Figures 2 to 5 As shown, this embodiment provides a doghouse snap-on base structure for improving the surface shrinkage of automotive interior and exterior trim products. The doghouse snap-on base structure 2 is installed on side B of the automotive interior and exterior trim product. The automotive interior and exterior trim product can be a car door sill 1, which is a single-panel structure, i.e., only one layer of board; of course, it can also be other interior and exterior trim parts. The doghouse snap-on base structure 2 is equipped with snaps 3, which are used to install the automotive interior and exterior trim product onto the vehicle body. The doghouse snap-on base structure 2 includes a doghouse body 2-1 and snap-on base connecting ribs 2-2; the doghouse body... 2-1 is completely suspended, so that the bottom surface of the doghouse body 2-1 maintains a gap with the B surface of the automotive interior and exterior trim product (car door sill 1). Three snap-fit ​​base connecting ribs 2-2 are spaced apart on both sides of the doghouse body 2-1, and two snap-fit ​​base connecting ribs 2-1 are provided at the closed end of the doghouse body 2-1. The bottom surface of the snap-fit ​​base connecting ribs 2-1 is connected to the B surface of the automotive interior and exterior trim product (car door sill 1). The suspended doghouse body 2-1 is supported by the snap-fit ​​base connecting ribs distributed in an octagonal pattern, so as to realize the connection between the doghouse body 2-1 and the automotive interior and exterior trim product (car door sill 1).

[0021] Furthermore, in this embodiment, the thickness of the buckle base connecting rib 2-2 does not exceed 1 / 3 of the wall thickness of the automotive interior and exterior trim product, and the length of the connection between the buckle base connecting rib 2-2 and the automotive interior and exterior trim product, that is, the length of the bottom surface of the buckle base connecting rib, is controlled within 3-5mm.

[0022] This embodiment also provides an automotive interior and exterior trim product, which is a single-panel structure. Multiple doghouse buckle base structures described above are spaced apart on the B-side of the automotive interior and exterior trim product, which is a car door sill.

[0023] In this embodiment, after the entire part (automotive interior and exterior trim product) is injection molded, it is sprayed with paint, and then the clip 3 is attached to the suspended doghouse body 2-1 to form the part assembly. The suspended "octopus"-like structure improves the shrinkage problem of single-plate structure and solves the problems of high cost and heavy weight of traditional double-plate parts.

[0024] The above describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A doghouse snap-on base structure for improving surface shrinkage of automotive interior and exterior trim products, characterized in that, The device includes a doghouse body and snap-fit ​​base connecting ribs. The doghouse body is completely suspended, maintaining a gap between the bottom surface of the doghouse body and the B-side of the automotive interior and exterior trim product. Three snap-fit ​​base connecting ribs are spaced apart on both sides of the doghouse body, and two snap-fit ​​base connecting ribs are provided at the closed end of the doghouse body. The bottom surface of the snap-fit ​​base connecting ribs is connected to the B-side of the automotive interior and exterior trim product. The connection between the doghouse body and the automotive interior and exterior trim product is achieved through the snap-fit ​​base connecting ribs distributed in an octagonal pattern.

2. The doghouse buckle base structure for improving surface shrinkage of automotive interior and exterior trim products according to claim 1, characterized in that, The thickness of the buckle base connecting rib does not exceed 1 / 3 of the wall thickness of the automotive interior and exterior trim products. The length of the connection between the buckle base connecting rib and the automotive interior and exterior trim products, that is, the length of the bottom surface of the buckle base connecting rib, is controlled within 3-5mm.

3. An automotive interior and exterior trim product, characterized in that, The automotive interior and exterior trim products have a single-panel structure, and the B-side of the automotive interior and exterior trim products is provided with the doghouse buckle base structure as described in claim 1 or 2.

4. The automotive interior and exterior trim product according to claim 3, characterized in that, The automotive interior and exterior trim products include car door sills.

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