Reinforcing structure of automobile interior trimming panel
By integrating the interior trim panels with the doghouse structure and reinforcing ribs, the problem of increased weight and cost of automotive interior trim panels under strength requirements is solved, achieving material and cost savings while improving appearance quality and safety.
Patent Information
- Application Number
- CN202520707623.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-15
AI Technical Summary
While meeting strength requirements, existing automotive interior panels result in increased part weight and manufacturing costs, high mold expenses, and significant quality control risks, especially without special reinforcement designs.
The interior trim panel, dog kennel structure, and reinforcing ribs are integrated into one design. The dog kennel structure consists of a cavity formed by the left side, right side, top side, and rear side. The reinforcing ribs are located in the cavity and connect with the interior trim panel, top side, and rear side to form a stepped structure. The thickness difference between the support ribs and the anti-shrinkage ribs is used to enhance support and prevent shrinkage.
It meets strength requirements within a limited space, saves materials and costs, improves appearance quality, and ensures safety and reliability.
Smart Images

Figure CN223904998U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, especially to automobile interior board reinforcing structure. BACKGROUND
[0002] In the automobile interior board product design process, generally all are single layer injection molding parts and increase reinforcing rib, if special part (disassembly requirement part, easy deformation part, functional part) strength requirement is high, product surface does not have special reinforcing modeling, if increasing reinforcing plate in the inside and fixing into a whole with interior board to meet the strength requirement, this causes that part weight, manufacturing cost increase greatly, mould cost also increases more, and quality control risk increases. INVENTION CONTENTS
[0003] In view of the above technical problem, the utility model provides a kind of automobile interior board reinforcing structure, to solve.
[0004] The technical scheme adopted by the utility model is as follows:
[0005] A kind of automobile interior board reinforcing structure, including the connection of interior board, doghouse structure and reinforcing rib as a whole, it is characterized by: the doghouse structure is connected by including left side, right side, upper edge, rear edge and interior board seamless enclosure connection to form a cavity, the upper edge is connected with the rear edge, the rear edge is connected with the interior board, the left side and the right side are connected to the both sides of doghouse structure, and are connected with the upper edge, the rear edge and the interior board respectively, the reinforcing rib is located in the cavity of doghouse structure, and is connected with the interior board, the upper edge and the rear edge respectively, the rear edge includes support edge and shrinkage prevention edge, the thickness of support edge is greater than the thickness of shrinkage prevention edge, the shrinkage prevention edge is connected with the interior board, the support edge is connected with the upper edge, the support edge and the shrinkage prevention edge are connected as a whole, form step, the reinforcing rib includes support rib and shrinkage prevention rib, the thickness of support rib is greater than the thickness of shrinkage prevention rib, the shrinkage prevention rib is connected with the interior board, and also connected with the shrinkage prevention edge of rear edge, the support rib is connected with the upper edge, the support rib and the shrinkage prevention rib are connected as a whole, form step.
[0006] The automobile interior board reinforcing structure, wherein the reinforcing rib in the cavity of the doghouse structure is at least two, and the distance between the reinforcing ribs in the doghouse structure is 30-40 mm.
[0007] The automobile interior board reinforcing structure, wherein the height of the shrinkage prevention rib is 2-4 mm.
[0008] The automobile interior board reinforcing structure, wherein the thickness of the shrinkage prevention rib is 0.8-1 mm.
[0009] The anti-shrinking thickness is 0.8-1 mm.
[0010] The automobile interior plate reinforcing structure is scientific in design, simple in structure, capable of meeting the strength requirement of the interior plate in limited space, good in appearance quality, capable of saving materials and cost, and safe and reliable in action. BRIEF DESCRIPTION OF DRAWINGS
[0011] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application together with the specification:.
[0012] Figure 1 It is a three-dimensional schematic view of the automobile interior plate reinforcing structure of the present application;
[0013] Figure 2 It is a schematic view of A-A direction; Figure 1
[0014] Figure 3 It is a schematic view of M area; Figure 1
[0015] Figure 4 It is a plane schematic view of the automobile interior plate reinforcing structure of the present application;
[0016] Figure 5 It is a schematic view of C-C direction; Figure 4
[0017] It is a schematic view of D-D direction; Figure 6 Figure 4
[0018] Figure 7 It is a schematic view of N area; Figure 5
[0019] It is a schematic view of E area; Figure 8 Figure 6
[0020] In the figure, 1 is an interior plate, 2 is a doghouse structure, 21 is a left side edge, 22 is a right side edge, 23 is an upper edge, 24 is a rear edge, 241 is a supporting edge, 242 is an anti-shrinking edge, 3 is a reinforcing rib, 31 is a supporting rib, and 32 is an anti-shrinking rib.
[0021] a is the length of the reinforcing structure (dog house structure), b is the angle between the shrinkage prevention rib and the interior trim panel in the reinforcing rib, c is the height of the shrinkage prevention rib of the reinforcing structure, d is the height of the highest position of the reinforcing structure, e is the distance between the reinforcing ribs in the reinforcing structure, f is the thickness of the top of the reinforcing rib (support rib) in the reinforcing structure, g is the thickness of the bottom of the reinforcing rib (shrinkage prevention rib) in the reinforcing structure, h is the main wall thickness of the reinforcing structure, i is the height of the lowest position of the reinforcing structure, j is the thickness of the support rib at the left and right ends of the reinforcing structure, k is the thickness of the bottom of the rear edge (shrinkage prevention edge) of the reinforcing structure, m is the depth of the dog house, and L is the sliding-out space length of the dog house mold inclined top. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described below are only used to explain the utility model, and in these descriptions, the key words to be noted include "dog house structure", "shrinkage prevention edge", "support edge", "shrinkage prevention rib", "support rib" and the like, which are only used for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.
[0023] Referring to Figures 1-2 , the utility model automobile interior trim panel reinforcing structure, including interior trim panel 1, dog house structure 2 and reinforcing rib 3, interior trim panel 1, dog house structure 2 and reinforcing rib 3 are connected as a whole, the dog house structure is connected by including left side edge 21, right side edge 22, upper edge 23, rear edge 24 and interior trim panel 1 seamless enclosure and constitutes a cavity, such as Figure 4 , Figure 5 , the upper edge 23 is connected with the rear edge 24, the rear edge 24 is connected with the interior trim panel 1, the left side edge 21 and the right side edge 22 are connected on both sides of the dog house structure 2 and are connected with the upper edge 23, the rear edge 24 and the interior trim panel 1 respectively, referring to Figure 3 , the reinforcing rib 3 is located in the cavity of the dog house structure and is connected with the interior trim panel 1, the upper edge 23 and the rear edge 24 respectively, and forms a reinforcing structure together. Referring to Figure 6 and Figure 8 , the rear edge 24 includes support edge 241 and shrinkage prevention edge 242, the thickness of the support edge 241 is greater than the thickness of the shrinkage prevention edge 242, the shrinkage prevention edge 242 is connected with the interior trim panel 1 to prevent the interior trim panel 1 from shrinking too much during production to cause appearance defects due to shrinkage printing, the support edge 241 is connected with the upper edge 23 to increase the support strength, and the support edge 241 and the shrinkage prevention edge 242 are connected as a whole to form a step. Referring to Figure 6 and Figure 7As shown, according to the specific circumstances of the length a of the reinforcing structure, the number of reinforcing ribs 3 is set, and the distance between them is e, the reinforcing ribs 3 include support ribs 31 and shrinkage prevention ribs 32, the thickness of the support ribs 31 is greater than the thickness of the shrinkage prevention ribs 32, the shrinkage prevention ribs 32 are connected with the interior trim panel 1 to prevent the interior trim panel 1 from being too shrunk during manufacturing to cause appearance defects due to shrinkage printing, and are also connected with the shrinkage prevention edges 242 of the rear edges 24, the support ribs 31 are connected with the upper edges 23 to increase the support strength, and the support ribs 31 and the shrinkage prevention ribs 32 are connected integrally to form a step.
[0024] The utility model discloses according to the production, use needs, according to the theoretical analysis and practical application experience data, generally determine that the length a of reinforcing structure length is 100-1000mm (can be adjusted according to the size of interior trim panel, and the embodiment is 300mm), the relative angle b of shrinkage prevention rib in reinforcing rib and interior trim panel is 75-100 degrees (the embodiment is 80 degrees), the height c of reinforcing structure shrinkage prevention rib is 2-4mm (the embodiment is 3mm), the height d of reinforcing structure highest position is 15mm, the distance e between reinforcing rib in reinforcing structure (dog house structure) is 30-40mm (the embodiment is 35mm), the thickness f of reinforcing rib top (support rib) in reinforcing structure is 2.5-3mm (the embodiment is 2.5mm), the thickness g of reinforcing rib bottom (shrinkage prevention rib) in reinforcing structure is 0.8-1mm (the embodiment is 0.9mm), the main wall thickness h of reinforcing structure is 2.5-3mm (the embodiment is 2.5mm), the height i of reinforcing structure lowest position is 1mm, the thickness j of reinforcing structure left and right end support rib is 0.8-1mm (the embodiment is 0.9mm), the thickness k of reinforcing structure rear edge bottom (shrinkage prevention edge) is 0.8-1mm (the embodiment is 0.9mm), the sliding space length L of dog house mold inclined top is 18mm, and the depth m of dog house depth is 14mm.
[0025] The above only describes the general embodiment of the utility model, and the utility model can have various other embodiments of changes and changes for the person skilled in the art, and the utility model does not repeat here. Any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model are included in the protection scope required by the utility model.
Claims
1. A reinforcing structure for an automobile interior panel, comprising an interior panel (1), a dog house structure (2) and a reinforcing rib (3) connected as one body, characterized in that: The dog house structure is composed of a left side edge (21), a right side edge (22), an upper edge (23), a rear edge (24) and an inner panel (1) seamlessly connected to form a cavity, the upper edge (23) is connected with the rear edge (24), the rear edge (24) is connected with the inner panel (1), the left side edge (21) and the right side edge (22) are connected to both sides of the dog house structure (2) and are connected with the upper edge (23), the rear edge (24) and the inner panel (1) respectively, the reinforcing rib (3) is located in the cavity of the dog house structure and is connected with the inner panel (1), the upper edge (23) and the rear edge (24) respectively, the rear edge (24) comprises a support edge (241) and a shrinkage prevention edge (242), the thickness of the support edge (241) is greater than that of the shrinkage prevention edge (242), the shrinkage prevention edge (242) is connected with the inner panel (1), the support edge (241) is connected with the upper edge (23), the support edge (241) and the shrinkage prevention edge (242) are connected as a whole to form a step, the reinforcing rib (3) comprises a support rib (31) and a shrinkage prevention rib (32), the thickness of the support rib (31) is greater than that of the shrinkage prevention rib (32), the shrinkage prevention rib (32) is connected with the inner panel (1) and the shrinkage prevention edge (242) of the rear edge (24), the support rib (31) is connected with the upper edge (23), the support rib (31) and the shrinkage prevention rib (32) are connected as a whole to form a step.
2. The reinforcing structure for an automobile interior panel according to claim 1, characterized by: The number of reinforcing ribs (3) in the cavity of the dog house structure is at least 2, and the distance (e) between the reinforcing ribs in the dog house structure is 30-40 mm.
3. The reinforcing structure for an automobile interior panel according to claim 1, characterized by: The height (c) of the shrinkage prevention rib (32) is 2-4 mm.
4. The reinforcing structure for an automotive interior panel according to claim 1, characterized by: The thickness (g) of the shrinkage prevention rib (32) is 0.8-1 mm.
5. The reinforcing structure for an automotive interior panel according to claim 1, characterized by: The thickness (k) of the shrinkage prevention edge (242) is 0.8-1 mm.