Vehicle Lamp Perpendicular Substrate Heat Sink Area Reduction
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Solution Overview
Problem
Vehicle interior lamps face challenges in minimizing heat sink and substrate areas while ensuring electrical connectivity and simplifying the complex installation process within spatially limited vehicle interiors.
Innovation Solution
A lamp design featuring a perpendicularly coupled second substrate with a terminal part for secure electrical connection, obliquely connected body surfaces, and a housing with terminal mounting parts that facilitate easy assembly and improved coupling properties, minimizing heat sink and substrate areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a complex room lamp structure with LED package, substrate, lens, and housing is used to ensure proper lighting function, then the lighting performance is improved, but the device complexity increases and installation becomes difficult in vehicle interiors with spatial limitations
Solution Approach 1:
The patent integrates the substrate and heat sink into a single integrated structure. The substrate serves dual functions as both the mounting platform for LED packages and the heat dissipation component, eliminating the need for separate heat sink structures and reducing overall component count and assembly complexity
Solution Approach 2:
The substrate is designed to perform multiple functions simultaneously: electrical connection for LED packages, mechanical support structure, and thermal management through heat dissipation. This multi-functional design reduces the number of separate components needed in the lighting assembly
2Temperature
If a traditional room lamp structure with separate substrate and heat sink is used to ensure proper heat dissipation, then the thermal management is improved, but the area occupied by heat sink and substrate increases which is problematic in space-constrained vehicle interiors
Solution Approach 1:
The substrate and heat sink are merged into a single integrated component. The substrate itself is designed with heat dissipation features such as extended surfaces or thermal pathways, eliminating the need for a separate heat sink structure and reducing the total area required for thermal management
3Manufacturing precision
If a complex assembly process is used to ensure proper installation of room lamp components, then the assembly quality is improved, but the installation time and complexity increase in vehicle interior applications
Solution Approach 1:
By integrating the substrate and heat sink into one component, the number of assembly steps is reduced. The integrated structure requires fewer alignment and fastening operations compared to assembling separate substrate and heat sink components, thereby reducing installation time while maintaining assembly quality
Solution Approach 2:
The lighting assembly is designed as a modular unit with the integrated substrate-heat sink forming a complete functional module. This segmentation allows the entire lighting assembly to be installed as a single unit, simplifying the installation process in vehicle interiors
Data Source
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AI summary
The present invention provides a lamp for a vehicle including a housing in which an open surface is formed, a first substrate on which a light source is mounted and which is disposed in the housing such that the light source faces the open surface, a second substrate electrically connected to the first substrate and perpendicularly coupled to the first substrate, a terminal part coupled to an end portion of the second substrate to be in contact with a terminal of a socket connected to an external power source, and a lens coupled to the housing to cover the open surface, and thus may provide an advantageous effect in that areas of a heat sink and the substrate are minimized while electrical connectivity is secured.