Straddle-Type Vehicle Electrical Component Box and Fuel Tank Gap Cover
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Solution Overview
Problem
The existing design of saddle-type vehicles with an electric equipment case and fuel tank configuration faces challenges in achieving desired heat release performance while maintaining waterproof and dustproof integrity, as a hermetical structure compromises heat release and an open structure compromises aesthetics and exposure to external elements.
Innovation Solution
The electric equipment case is positioned to extend from the upper side to the lower side of the frame, with a fuel tank above it, and a gap cover is used to hide the gap between the cases, preventing water and dust entry while allowing wire harnesses and hoses to pass through strategically to reduce load and improve appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric equipment case is covered by a hermetical structure, then waterproof performance and dustproof performance are improved, but heat releasing performance of electric equipment is degraded
Solution Approach 1:
The electric equipment case is designed with different properties in different regions: the lower part maintains a hermetical sealed structure for waterproof and dustproof protection, while the upper part is opened to enable heat release. This local differentiation allows simultaneous achievement of both protection and thermal management requirements.
2Temperature
If the electric equipment case is opened for heat release, then heat releasing performance is improved, but outer appearance is impaired and water/dust may enter
Solution Approach 1:
The case structure is differentiated into sealed lower portion and open upper portion, allowing heat release from electrical equipment while maintaining waterproof protection for critical components in the lower section.
Solution Approach 2:
The fuel tank is positioned above the electric equipment case, creating a vertical arrangement where the fuel tank acts as a protective cover from above, preventing water and dust entry while allowing lateral heat dissipation from the opened upper part of the electric equipment case.
3Temperature
If the gap between electric equipment case and fuel tank is left open, then heat release is facilitated, but outer appearance is impaired and water/dust entry is enabled
Solution Approach 1:
A gap cover member is introduced as an intermediary component between the electric equipment case and the fuel tank. This gap cover maintains the visual continuity of the vehicle body, preventing the gap from being visible from the outside, while still allowing heat to pass through and providing additional protection against water and dust entry.
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 enhances heat release performance, maintains a sleek appearance, and effectively prevents water and dust ingress, thereby improving waterproof and dustproof performance while reducing the load on components like brake hoses.
Implementation Method 1
upper part of the electric equipment case is opened, and a gap cover is provided at a gap between the electric equipment case and the fuel tank
Data Source
AI summary
An electrical component box disposed from above to below a main frame, and a fuel tank disposed in the upper part of the main frame and above the electrical component box, are arranged to the vehicle rear with respect to a head pipe comprising a motorcycle. In this case, the top of the electrical component box is open. In the gap between the electrical component box and the fuel tank, a gap cover is arranged to hide the gap from the outside.