Motorcycle Headlight Compact Housing via Nested Circuit Recess
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge is to accommodate LEDs and their power supply circuit units in a compact manner within the front fairing of a motorcycle headlight device while downsizing the fairing, as the shape of the fairing restricts space for the power supply circuit unit.
Innovation Solution
The headlight device incorporates a lamp unit with LEDs and a power supply circuit unit, where the power supply circuit unit is housed in a recess above the lamp unit, and an elastic body is used to absorb positional deviations, allowing the lamp unit to be positioned lower in the fairing without obstruction, facilitating compact accommodation and improved assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the front fairing is downsized to reduce overall vehicle size, then the aesthetic appeal and aerodynamic performance are improved, but the arrangement space for the power supply circuit unit becomes insufficient
Solution Approach 1:
The power supply circuit unit is nested within the lamp unit by placing it in a recess provided in the upper portion of the lamp unit. This nesting arrangement allows both the lamp unit and power supply circuit unit to be accommodated within the downsized front fairing without increasing the overall volume, as the power supply circuit unit occupies space that would otherwise be empty within the lamp unit structure.
Solution Approach 2:
The lamp unit is positioned at the lowermost position in the front fairing, utilizing the vertical dimension effectively. The front fairing has a tapered shape with more space available at the lower portion, so placing the lamp unit there allows the power supply circuit unit to be accommodated in the recess above it, optimizing the use of available space in the longitudinal direction.
2Volume of moving object
If the lamp unit is positioned at the lowermost position in the front fairing to utilize available space, then the accommodation of LEDs is improved, but the power supply circuit unit would obstruct this positioning if not properly arranged
Solution Approach 1:
The power supply circuit unit is integrated into the lamp unit structure through the recess arrangement, eliminating the need for separate mounting structures and reducing overall arrangement complexity.
3Stability of the object's composition
If rigid fixation is used to secure the power supply circuit unit in the recess, then the positional stability is improved, but the vibration transmission from the lamp bracket increases
Solution Approach 1:
An elastic body is introduced as an intermediary between the power supply circuit unit and the recess. This elastic body serves as a mediator that provides positional stability through elastic retention while simultaneously absorbing vibrations, preventing their transmission to the power supply circuit unit.
Solution Approach 2:
The elastic body provides beforehand cushioning by absorbing vibrations before they can reach the power supply circuit unit, protecting it from harmful vibrational effects during motorcycle operation.
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 enables the lamp and power supply units to be compactly housed in the front fairing, even when downsized, enhancing assembly stability and reducing the number of components and assembly steps, while maintaining effective power delivery and vibration absorption.
Implementation Method 1
an elastic body is interposed between the power supply circuit unit and the recess. With this configuration, positional deviations between the power supply circuit unit and the lamp unit in the longitudinal direction and the left-right direction or the motorcycle widthwise direction are absorbed by the elastic body.
Implementation Method 2
since the box is formed of an elastic body, vibration transmitted from the lamp bracket during traveling of the motorcycle is also absorbed.
Data Source
AI summary
A headlight device (40) for a motorcycle is accommodated in a front fairing (30). The headlight device (40) includes lamp units (42) using LEDs as light sources (46a, 48a), and a power supply circuit unit (44) which controls power from a power supply and supplies the power to the light sources (46a, 48a). The power supply circuit unit (44) is accommodated in a recess (56) provided in an upper portion of the lamp units (42).