A connecting structure of an automotive interior injection molding part

Abstract

The utility model discloses a kind of connecting structure of automobile interior injection molding parts, including panel, it has reinforcing rib of grid structure distribution;Bottom plate, it has multiple connecting columns, multiple connecting columns are fused with reinforcing rib, wherein, the connecting column has recess, the recess and its corresponding reinforcing rib shape match, the recess is inserted with reinforcing rib.This utility model grid-shaped reinforcing rib and the fusion design of recess connecting column, on the one hand, the fusion of material is realized, the reinforcing rib of melting in fusion process extends into recess, increase the contact area of melt, improve the welding strength of panel and bottom plate, while avoid melt glue material overflow and lead to false welding;On the other hand, grid-shaped reinforcing rib can effectively disperse stress, avoid local stress concentration, significantly improve the overall bending and torsion resistance of automobile interior injection molding parts.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive interior injection molded parts, and in particular to a connection structure for automotive interior injection molded parts. Background Technology

[0002] Automotive interior injection molded parts typically employ a structure where the panel and base plate are connected. The strength of this connection directly affects the durability of the automotive interior injection molded parts. Traditional connection methods often rely on mechanical fasteners (such as screws, clips, etc.) or adhesive bonding, which suffers from insufficient connection strength: mechanical fasteners are prone to loosening or falling off due to vibration, and adhesives lose their adhesion over time, leading to bonding failure. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, the present invention provides a connection structure for automotive interior injection molded parts, which aims to solve at least one of the problems in the background art.

[0004] This utility model is implemented according to the following technical solution:

[0005] This utility model discloses a connection structure for injection-molded automotive interior parts, including:

[0006] The panel has reinforcing ribs distributed in a grid structure;

[0007] The base plate has multiple connecting posts, which are fused to the reinforcing ribs. Each connecting post has a groove that matches the shape of its corresponding reinforcing rib, and the groove is inserted into the reinforcing rib.

[0008] Compared with the prior art, the welding design of the mesh-like reinforcing ribs and grooved connecting columns of this utility model achieves material fusion. During the welding process, the molten reinforcing ribs extend into the grooves, increasing the contact area of ​​the melt and improving the welding strength of the panel and the base plate. At the same time, it avoids the overflow of molten adhesive, which can lead to incomplete welding. On the other hand, the mesh-like reinforcing ribs can effectively disperse stress and avoid local stress concentration, which significantly improves the overall bending and torsional resistance of automotive interior injection molded parts.

[0009] In a preferred embodiment, the reinforcing rib includes a plurality of first reinforcing ribs and a plurality of second reinforcing ribs; the plurality of first reinforcing ribs are arranged in parallel and spaced apart, and the plurality of second reinforcing ribs are arranged in parallel and spaced apart; the extending directions of the first reinforcing ribs intersect the extending directions of the second reinforcing ribs.

[0010] In a preferred embodiment, the first reinforcing rib and the second reinforcing rib have an intersection portion; the center of the connecting column is aligned vertically with the intersection portion.

[0011] In a preferred embodiment, the connecting post has a through hole in the middle.

[0012] In a preferred embodiment, the outer periphery of the through hole is provided with four grooves for insertion with the first reinforcing rib and the second reinforcing rib.

[0013] In a preferred embodiment, at least one junction is spaced between the two connecting posts.

[0014] In a preferred embodiment, the mesh structure is a prismatic mesh structure.

[0015] In a preferred embodiment, the panel has a first positioning portion and the base plate has a second positioning portion; the first positioning portion and the second positioning portion are in concave-convex cooperation. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the connection structure of the automotive interior injection molded part before welding.

[0018] Figure 2 This is a bottom view of the panel of this utility model;

[0019] Figure 3 This is a top view of the base plate of this utility model;

[0020] Figure 4 This is a structural diagram of the connection structure of the injection-molded automotive interior parts of this utility model after welding.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100-Panel, 110-Reinforcing rib, 111-First reinforcing rib, 112-Second reinforcing rib, 113-Intersection, 120-First positioning part, 200-Base plate, 210-Connecting column, 211-Groove, 212-Through hole, 220-Second positioning part. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0025] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] Combination Figures 1 to 4 This utility model discloses a connection structure for injection-molded automotive interior parts, comprising:

[0028] Panel 100 has reinforcing ribs 110 distributed in a grid structure;

[0029] The base plate 200 has a plurality of connecting posts 210, which are fused with the reinforcing ribs 110. Each connecting post 210 has a groove 211, which matches the shape of its corresponding reinforcing rib 110 and is inserted into the reinforcing rib 110.

[0030] Compared with the prior art, the welding design of the mesh-like reinforcing rib 110 and the grooved connecting post 210 of this utility model achieves material fusion. During the welding process, the molten reinforcing rib 110 extends into the groove 211, increasing the contact area of ​​the melt and improving the welding strength of the panel 100 and the base plate 200, while avoiding the overflow of molten material and thus preventing incomplete welding. On the other hand, the mesh-like reinforcing rib 110 can effectively disperse stress and avoid local stress concentration, significantly improving the overall bending and torsional resistance of automotive interior injection molded parts.

[0031] It should be noted that before connecting the panel 100 and the base plate 200, the heating module is used to heat the reinforcing rib 110 and the connecting column 210 to facilitate the welding of the panel 100 and the base plate 200.

[0032] In this embodiment, the reinforcing rib 110 includes a plurality of first reinforcing ribs 111 and a plurality of second reinforcing ribs 112; the plurality of first reinforcing ribs 111 are arranged in parallel and spaced apart, and the plurality of second reinforcing ribs 112 are arranged in parallel and spaced apart; the extending directions of the first reinforcing ribs 111 and the extending directions of the second reinforcing ribs 112 intersect (e.g., perpendicularly), forming a grid-like support structure, balancing stresses from different directions (e.g., transverse, longitudinal, or shear forces), significantly improving the bending and torsional resistance of the panel 100. The reinforcing ribs 110 are evenly distributed in a parallel manner, reducing material stacking redundancy, reducing the weight of the panel 100 while ensuring strength, and meeting the lightweight requirements of automobiles.

[0033] Furthermore, the first reinforcing rib 111 and the second reinforcing rib 112 have an intersection portion 113; the center of the connecting post 210 is vertically aligned with the intersection portion 113. Using the intersection portion 113 as a reference, the positions of the connecting posts 210 are distributed, simplifying the product design process.

[0034] Preferably, the connecting post 210 has a through hole 212 in the middle. The through hole 212 allows the connecting post 210 to deform during thermal expansion and contraction, reducing the structural stress of the connecting post 210 in high-temperature environments.

[0035] More preferably, the outer periphery of the through hole 212 is provided with four grooves 211 for insertion into the first reinforcing rib 111 and the second reinforcing rib 112. The four grooves 211 are respectively inserted into and fused with the first reinforcing rib 111 and the second reinforcing rib 112, that is, the first and second reinforcing ribs 112 need to be connected to two of the grooves 211 of a connecting post 210, which effectively increases the contact area and ensures the stability of the fusion.

[0036] Preferably, the two connecting posts 210 are separated by at least one junction 113. If the spacing between the connecting posts 210 is too small (e.g., they are arranged adjacent to each other), the welded area may experience stress concentration due to material accumulation or uneven thermal shrinkage. By forcibly separating them by at least one junction 113, the load is distributed and the local stress is reduced.

[0037] In this embodiment, the mesh structure is a rhomboid mesh structure.

[0038] In this embodiment, the panel 100 has a first positioning part 120, and the base plate 200 has a second positioning part 220; the first positioning part 120 and the second positioning part 220 are in a concave-convex fit. The concave-convex positioning design of the first positioning part 120 and the second positioning part 220 ensures that the panel 100 and the base plate 200 are quickly and accurately aligned, reducing manual adjustment time. The accurate positioning ensures that the welding positions of the connecting column 210 and the reinforcing rib 110 are strictly aligned, avoiding insufficient welding or structural skewing due to misalignment.

[0039] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A connection structure for automotive interior injection molded parts, characterized in that, include: The panel has reinforcing ribs distributed in a grid structure; The base plate has multiple connecting posts, which are fused to the reinforcing ribs. Each connecting post has a groove that matches the shape of its corresponding reinforcing rib, and the groove is inserted into the reinforcing rib.

2. The connection structure for automotive interior injection molded parts according to claim 1, characterized in that: The reinforcing ribs include a plurality of first reinforcing ribs and a plurality of second reinforcing ribs; Multiple first reinforcing ribs are arranged in parallel and spaced apart, and multiple second reinforcing ribs are arranged in parallel and spaced apart; The extension direction of the first reinforcing rib intersects with the extension direction of the second reinforcing rib.

3. The connection structure for automotive interior injection molded parts according to claim 2, characterized in that: The first reinforcing rib and the second reinforcing rib have an intersection; the center of the connecting column is aligned vertically with the intersection.

4. The connection structure for automotive interior injection molded parts according to claim 3, characterized in that: The connecting post has a through hole in the middle.

5. The connection structure for automotive interior injection molded parts according to claim 4, characterized in that: The outer periphery of the through hole is provided with four grooves for insertion with the first reinforcing rib and the second reinforcing rib.

6. The connection structure for automotive interior injection molded parts according to claim 3, characterized in that: There is at least one junction between the two connecting posts.

7. The connection structure for automotive interior injection molded parts according to claim 1, characterized in that: The mesh structure is a rhomboid mesh structure.

8. The connection structure for automotive interior injection molded parts according to claim 1, characterized in that: The panel has a first positioning part, and the base plate has a second positioning part; The first positioning part and the second positioning part are in a concave-convex fit.

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