Vehicular LED Lamp with Segmented Reflective Member
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Solution Overview
Problem
Vehicular LED lamps face challenges in accurately controlling the output lighting pattern and achieving effective heat dissipation due to the parallel arrangement of LED light sources and inadequate heat management.
Innovation Solution
The design includes a housing with a reflective member having distinct reflective surfaces and a partitioning section, along with a lamp seat that blocks direct light transmission and facilitates heat dissipation through mounting portions and fins, ensuring accurate beam control and enhanced heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If LED light sources are arranged parallel to the cover extending direction, then the structure is simple, but light beam control is inaccurate and heat dissipation is poor
Solution Approach 1:
The patent divides the single LED light source into multiple LED light sources (first LED light source and second LED light source) arranged at different positions. Each LED light source is paired with its own reflective portion, creating segmented light control zones that enable precise lighting pattern control while maintaining structural simplicity
Solution Approach 2:
The patent applies different reflective properties to different portions of the reflective member. The reflective portions are positioned and oriented differently to reflect light from respective LED sources in specific directions, creating localized light control zones that achieve accurate overall lighting patterns
2Volume of moving object
If LED light sources are arranged parallel to the cover, then the structure is compact, but heat dissipation effect is reduced
Solution Approach 1:
The patent transitions from a single-plane parallel arrangement to a multi-dimensional configuration where LED light sources are positioned at different locations and orientations. The reflective portions are arranged to reflect light from multiple angles, adding spatial dimensionality to the light control system while improving heat dissipation through better air circulation around multiple heat-generating points
3Manufacturing precision
If reflective portions are added to control light beams, then lighting pattern control is improved, but device complexity increases
Solution Approach 1:
The patent combines the functions of multiple reflective elements into a single integrated reflective member. The reflective portions are formed as part of the same structural component, reducing the number of separate parts while maintaining the ability to control light beams from multiple LED sources in different directions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for precise control of lighting patterns and improved heat dissipation, enhancing the performance and application scope of vehicular LED lamps.
Implementation Method 1
Light beams emitted by the LED light sources 14′ and 15′ are reflected by the reflective portions 11′ and 12′
Implementation Method 2
transmit the cover 10′ to provide high beam or low beam
Data Source
AI summary
A vehicular light-emitting diode lamp includes a housing having a compartment receiving a reflective member including first and reflective surfaces and a partitioning section between the first and second reflective surface. The partitioning section includes two lateral portions respectively engaged with two mounting portions of the housing. A lamp seat is mounted in front of the partitioning section of the reflective member. First and second LED modules are mounted to the lamp seat and are electrically connected to a circuit board unit. The first LED module emits light beams towards a rear and a side of the first reflective surface. The second LED module emits light beams towards a rear and a side of the second reflective surface. Light beams emitted by the first and second LED modules transmit are reflected by the first and second reflective surfaces and then transmit cover in front of the reflective member.