Vehicle roof assembly

CN122165852APending Publication Date: 2026-06-09HYUNDAI MOTOR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HYUNDAI MOTOR CO LTD
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the roof structure of vehicles with sunroofs suffers from NVH problems and insufficient rigidity when it is enlarged, resulting in reduced performance, and structural optimization leads to an increase in overall cost.

Method used

The vehicle roof assembly employs a reinforced structure, including a crossbeam assembly, a sunroof frame assembly, and an L-shaped support connector. The roof outer panel, the rear crossbeam assembly, and the rear frame assembly are directly or indirectly connected by welding and bolting to enhance lateral shear stress and vertical deformation resistance.

Benefits of technology

It improves the overall rigidity of the vehicle roof, enhances NVH performance, reduces mold and welding costs, and strengthens support performance and structural rigidity.

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  • Figure CN122165852A_ABST
    Figure CN122165852A_ABST
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Abstract

This invention provides a vehicle roof assembly (A), comprising: a roof outer panel (1) having a sunroof opening (h) thereon; and a reinforcing assembly (2) disposed below the roof outer panel (1), including a crossbeam assembly (21) and a sunroof frame assembly (22) disposed around the periphery of the sunroof opening. The sunroof frame assembly (22) has a rear frame assembly (221) located at the rear of the vehicle in the longitudinal direction, and the crossbeam assembly (21) has a rear crossbeam assembly (211) located at the rear of the rear frame assembly (221) in the longitudinal direction. The vehicle roof assembly (A) further includes a connecting member assembly (C) connecting the roof outer panel (1), the rear crossbeam assembly (211), and the rear frame assembly (221). The vehicle roof assembly of this invention can solve the problems of reduced performance and insufficient rigidity caused by NVH in vehicle roofs with sunroofs, especially at the rear of the roof.
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