Saddle-riding Vehicle Headlamp Positioning and Direct Lighting
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Solution Overview
Problem
Saddle-riding type automotive vehicles face issues with a high center of gravity due to headlamp placement and large dimensions, affecting aesthetics and stability.
Innovation Solution
A streamlined front fairing with a direct lighting type headlamp device positioned lower on the vehicle, using LED chips and lens portions without reflectors, and disposed on both sides to reduce vertical and forward dimensions, enhancing aesthetics and lowering the center of gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the headlamp device is disposed in the upper region of the front fairing, then the lighting function is achieved, but the center of gravity of the vehicle body is raised
Solution Approach 1:
The patent relocates the headlamp device from the upper region to the lower region of the front fairing, changing the vertical dimension of placement. This dimensional shift achieves the dual benefit of maintaining lighting functionality while lowering the vehicle's center of gravity to the lower end region of the fairing, thereby improving vehicle stability.
2Illumination intensity
If a reflector is used in the headlamp device, then the lighting efficiency is improved, but the size of the lamp unit increases in the forward and rearward direction
Solution Approach 1:
The patent extracts and eliminates the reflector component from the headlamp device, adopting a direct lighting type structure where LED chips directly emit light through lens portions. This removal of the reflector significantly reduces the forward and rearward dimension of the lamp unit while maintaining effective lighting performance.
3Illumination intensity
If the lamp unit is equipped with a reflector, then the lighting direction is controlled, but the dimension of the fairing accommodating the lamp unit increases
Solution Approach 1:
By removing the reflector and adopting direct LED lighting with integrated lens portions, the patent reduces the space required for the headlamp device. This allows the fairing to be more compact in the forward and rearward direction, improving the overall aesthetic appearance and reducing the vehicle's frontal dimension.
4Illumination intensity
If the headlamp device is positioned higher on the vehicle body, then the lighting coverage is improved, but the aesthetic appearance deteriorates
Solution Approach 1:
The patent repositions the headlamp device to the lower end region of the front fairing, changing from a high-positioned to a low-positioned configuration. This dimensional relocation maintains adequate lighting coverage while significantly improving the aesthetic appearance by creating a more balanced and visually appealing front profile.
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
The solution effectively lowers the center of gravity, reduces the vehicle's dimensions, and enhances the aesthetic appearance by making the headlamp less conspicuous while maintaining effective lighting.
Implementation Method 1
one or more light emitting portions having an LED chip mounted on a circuit board
Implementation Method 2
one or more lens portions for projecting light, emitted from the light emitting portion, in a direction forwardly of the device
Data Source
AI summary
A headlamp device (18) having left and right pairs of lamp units (20) is disposed inwardly of a front fairing (14) to enclose a front portion of an automotive vehicle. Each of the lamp units (20) is a direct lighting type and includes two light emitting portions (34, 35), on which circuit boards (30, 31) having LED chips (32, 33) mounted thereon, and two lens portions (36, 37) for projecting light, emerging from the light emitting portions (34, 35), in a direction outwardly of the vehicle widthwise direction. The front fairing (14) is so formed as to bulge gradually laterally and upwardly of the vehicle widthwise direction from a tip portion (14a) in a rearward direction, and the headlight device (18) is disposed proximate to a lower end of the front fairing (14).