Multifunctional LED Headlamp for Motorcycles with Integrated Heat Dissipation
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Solution Overview
Problem
Existing LED headlamps for two-wheel vehicles cannot provide different light combinations such as dipped beam, full beam, or sidelights while maintaining small dimensions, and they lack efficient heat dissipation without additional means.
Innovation Solution
A multifunctional LED headlamp design featuring two LED light sources with aspherical and flat lenses, and internal reflectors, along with control means and external heat dissipators, allows for various light combinations and compact size, with heat dissipation integrated into the headlamp's design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single LED light source is used in the headlamp, then the headlamp structure is simple and compact, but it cannot provide different light combinations such as dipped beam, full beam, or sidelights
Solution Approach 1:
The headlamp is divided into multiple functional zones: a first light source (10) for dipped beam and sidelight functions, and a second light source (20) for full beam function. Each light source has its own reflector and lens system, allowing independent control to create different light combinations without requiring a completely complex reconfiguration of the entire headlamp structure.
Solution Approach 2:
The headlamp design enables a single device to perform multiple functions by selectively activating different light sources and their corresponding optical systems. The control means can activate the first light source alone for dipped beam, the second light source alone for full beam, or both together for other combinations, making the headlamp universally applicable for various lighting requirements.
2Adaptability or versatility
If multiple LED light sources are added to provide different light combinations, then light combination capability is improved, but the headlamp dimensions increase
Solution Approach 1:
The second light source (20) with its reflector (21) and lens (30b) is positioned within the volume occupied by the first light source's optical system. The reflectors and lenses are arranged concentrically and overlappingly, with the second light source's components nested within the spatial envelope of the first light source's components, thereby minimizing the overall headlamp volume while accommodating multiple light sources.
Solution Approach 2:
The patent utilizes the vertical dimension (Z-Z axis) to arrange the two light sources and their optical systems at different heights. The first light source is positioned lower with its reflector having downward concavity, while the second light source is positioned higher with its reflector having upward concavity. This vertical stacking allows multiple light sources to coexist in a compact horizontal footprint.
3Reliability
If LED light sources are used, then maintenance requirements are reduced, but heat dissipation becomes a critical issue requiring additional means
Solution Approach 1:
The heat dissipation function is merged into the existing headlamp structure by integrating dissipators (61, 62) with the containing body (1) and the light source mounting structures. The dissipators are positioned in direct thermal contact with the LED modules and are formed as integral parts or closely coupled components of the headlamp housing, eliminating the need for separate, additional cooling systems while effectively managing the thermal load from the LED light sources.
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
Enables different light output configurations with reduced size and production costs, and effective heat management without increasing the headlamp's dimensions or component count, suitable for two-wheel vehicles.
Implementation Method 1
at least one first light source 10 of the LED type associated with a respective reflector 11 which captures the rays
Implementation Method 2
reflecting them towards a first bottom emission zone 1a
Implementation Method 3
a first hybrid lens 30a of the aspherical type, associated with the first light source 10
Data Source
Figure 1~3
AI summary
Headlamp for two-wheel vehicles, comprising a first light source (10) of the LED type associated with a respective first reflector (11) able to reflect light rays in a first emission zone (1a); a second light source (20) of the LED type associated with a respective second reflector (21) able to deviate the rays of the second light source towards a second emission zone (1b), a hybrid lens (30) comprising an aspherical part (30a) and a flat part (30b), which are respectively arranged in front of said first emission zone (1a) and second emission zone (1b), and means (50) for controlling the emission of the light sources (10,20), wherein when the handlamp is mounted on the vehicle said aspherical part (30a) is arranged below the flat part second lens (30b) in the vertical direction (z-z) of the vehicle and said second light source (20), second reflector (21) and flat part (30b) are arranged in the volume of the headlamp in front of the first reflector (11) in the longitudinal direction (x-x) of the vehicle and above the aspherical part (30a) in the vertical direction (z-z) of the vehicle.