Vehicle Interior Lighting Assembling Structure
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Solution Overview
Problem
The existing assembling structure for vehicle interior lighting devices is complex and not simplified, requiring multiple lock arms and locking holes, which complicates the assembly process.
Innovation Solution
A simplified assembling structure that uses a through mounting hole with a first and second through portion, where the second portion is wider, and includes first and second sandwiching portions to securely attach the lighting device to the interior material, allowing for easy sliding assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple lock arms and locking holes are used to support the lighting device, then the support reliability is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The patent merges multiple separate sandwiching portions into a single integrated mounting structure that engages with the interior material as one unit. The housing includes multiple sandwiching portions (first sandwiching portion and second sandwiching portions) that work together to secure the lighting device to the interior material through a unified mounting hole structure, reducing the number of separate components and simplifying assembly while maintaining reliable support.
Solution Approach 2:
The mounting hole in the interior material serves multiple functions: it provides structural support, enables assembly, and integrates with the sandwiching portions to secure the device. The single mounting hole structure performs the functions that previously required multiple separate locking mechanisms, simplifying the overall assembly structure while maintaining support reliability.
2Reliability
If multiple lock arms and locking holes are used to support the lighting device, then the support reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent combines multiple sandwiching portions into a unified mounting system that engages with the interior material through a single mounting hole structure. This integration reduces the number of separate assembly steps and operations required, making the assembly process easier while maintaining reliable support through the coordinated action of all sandwiching portions.
Solution Approach 2:
The sandwiching portions are pre-configured in the housing with facing portions positioned to engage specific features of the mounting hole (first through portion and second through portion). This preliminary configuration allows for straightforward assembly where the housing simply needs to be positioned and secured, reducing the complexity of assembly operations while ensuring reliable support.
3Area of stationary object
If four lock arms are provided at corners of housing to engage with interior material, then the support coverage is improved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple sandwiching portions (first sandwiching portion at peripheral side and second sandwiching portions at other sides) into a unified mounting structure that engages with the interior material through a single mounting hole. This merging approach provides comprehensive support coverage across different areas of the housing while avoiding the complexity of four separate lock arm mechanisms.
Solution Approach 2:
The mounting structure utilizes a through-hole dimension in the interior material, engaging the housing from the rear side through the mounting hole. This dimensional approach allows multiple sandwiching portions to be distributed around the housing perimeter, providing wide support coverage, while the engagement occurs through a single unified mounting feature rather than multiple separate locking points.
Data Source
AI summary
A mounting hole of an interior material includes continuous first and second through portions. The second through portion is wider than the first through portion. An inner periphery of the second through portion includes a pair of connecting portions extending to widen. A first sandwiching portion of a housing of a vehicle interior lighting device includes a first facing portion facing an inner end face of the mounting hole, and sandwiches a first part located across the first through portion from the second through portion in the interior material. A pair of second sandwiching portions of the housing each includes a second facing portion facing an associated one of the pair of connecting portions of the mounting hole. Each of the pair of second sandwiching portions sandwiches a second part located across the pair of connecting portions from the second through portion in the interior material.