Automobile Rear Window Mounting Structure for Sealing and Noise Reduction
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Solution Overview
Problem
The existing connecting structure between the automobile rear fixed window and decorative panel is prone to deformation, leading to poor sealing and noise issues, with a short service life.
Innovation Solution
A mounting structure comprising a first connecting part with an angled part and a second connecting part, fixed on a car body side panel, forming a locking groove for the decorative panel and coupled with the sealing lip of the rear fixed window, utilizing a buckle with a sealing ring for enhanced sealing and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional connecting structure with first connecting part and second connecting part is used, then the assembly is easy to manufacture, but the connecting part deforms after prolonged use causing poor sealing and noise
Solution Approach 1:
The connecting structure is divided into a first connecting part and a second connecting part that are separately assembled. The first connecting part engages with the decorative panel while the second connecting part engages with the rear fixed window, allowing each part to be optimized for its specific function and reducing overall deformation
Solution Approach 2:
The first connecting part and second connecting part are nested together to form an integrated connecting structure. The first connecting part is inserted into the second connecting part, creating a layered assembly that distributes mechanical stresses and prevents deformation of individual components
2Reliability
If the conventional connecting structure is used, then the structure is simple, but the sealing between rear fixed window and decorative panel is poor
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the first connecting part and the decorative panel. The sealing ring fills gaps and prevents water or air infiltration, significantly improving sealing performance without requiring complex structural modifications
Solution Approach 2:
The sealing ring is made of flexible material that can deform to accommodate manufacturing tolerances and assembly variations. This flexible sealing element maintains effective sealing under various conditions without requiring precise rigid fitting
3Object-affected harmful factors
If the conventional connecting structure is used, then the assembly is easy to manufacture, but noise occurs after prolonged use
Solution Approach 1:
The sealing ring acts as a noise-damping intermediary between the connecting parts and the decorative panel. It absorbs vibrations and prevents noise transmission while maintaining the simplicity of the overall assembly process
Solution Approach 2:
The connecting structure combines rigid plastic materials for structural components with elastic sealing materials for the sealing ring. This composite material approach provides both structural integrity and noise reduction while keeping manufacturing simple
Data Source
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AI summary
The invention relates to the technical field of automobile parts, in particular to a mounting structure for connecting an automobile rear fixed window and a decorative panel, and an automobile. The mounting structure for connecting an automobile rear fixed window and a decorative panel comprises a first connecting part and a second connecting part. The second connecting part is connected to a car body side panel by a connecting member. The first connecting part has an angled part, one end of which is provided with a first extending part extending away from the car body side panel, and a second extending part extending towards the car body side panel from the first extending part. The first extending part and the angled part form a locking groove for engaging the decorative panel. The second extending part is coupled with a sealing lip of the automobile rear fixed window, a bottom surface of the second extending part abuts against an outer surface of the car body side panel, and an external load of the automobile rear fixed window acting on the second extending part causes the second extending part and the outer surface of the car body side panel to be fitted more closely, which effectively improves the sealing performance, facilitates noise insulation and reduction. The structure is simple and the assembly is easy.