Saddle Riding Vehicle Side Gusset Cooling Structure
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Solution Overview
Problem
Current saddle riding vehicle body structures do not effectively utilize traveling air for cooling vehicle components, leading to potential weight and size inefficiencies and reduced component protection.
Innovation Solution
A body structure with open sections in the side gussets allows traveling air to cool internal components, reduces weight by eliminating solid partitions, and enhances rigidity through inwardly curved flanges, while also serving as a protective member for components and harnesses, and balances load distribution between main and down frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a box-shaped structure with solid partitions is used to enclose vehicle components, then structural rigidity and component protection are improved, but vehicle weight increases and traveling air cannot effectively cool the components
Solution Approach 1:
The side gussets are segmented with opening sections that create internal spaces while maintaining structural integrity. The side gusset is divided into multiple sections by the openings, allowing air flow paths while preserving the overall box-shaped structural rigidity.
Solution Approach 2:
The side gusset structure incorporates opening sections that create a porous-like configuration, allowing traveling air to pass through and cool components while the remaining solid portions maintain structural strength.
2Temperature
If vehicle components are installed outside the side gussets, then cooling by traveling air is improved, but vehicle size increases and component protection is reduced
Solution Approach 1:
Vehicle components such as the fuel tank and battery are nested within the internal spaces formed by the side gussets. This nesting arrangement allows the components to be cooled by traveling air passing through the opening sections while maintaining a compact vehicle size and providing protective enclosure.
3Temperature
If additional air guide members are installed to direct traveling air for cooling, then cooling efficiency is improved, but device complexity and part count increase
Solution Approach 1:
The side gussets serve multiple functions: they provide structural support, create protective enclosures for components, and simultaneously act as air guides that direct traveling air to cool the nested components. This eliminates the need for separate air guide members.
Solution Approach 2:
The air guiding function is merged with the structural side gusset components. The opening sections of the side gussets inherently guide air flow to the components without requiring separate air guide members, reducing part count and complexity.
4Stability of the object's composition
If the down frame welded section is made longer than the main frame welded section, then load distribution and structural balance are improved, but manufacturing complexity increases
Solution Approach 1:
The welded section lengths are made asymmetric, with the down frame welded section being longer than the main frame welded section. This asymmetric configuration optimizes load distribution and structural balance, with the longer down frame welded section providing enhanced support for the head pipe and improving overall frame stability.
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
Efficient cooling of vehicle components without additional air guides, reduced weight and size, improved rigidity, and balanced load distribution, along with reduced fastening needs and part counts.
Implementation Method 1
opening sections opened in a forward/rearward direction are formed in the side gussets, traveling air can be efficiently taken into an inner side (a rear side) of the vehicle... vehicle components installed between the pair of left and right side gussets in the vehicle width direction can be cooled using the traveling air
Data Source
Figure 1
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AI summary
A body structure of a saddle riding vehicle includes a head pipe (20), and a pair of left and right side gussets (26L and 26R) connected to the head pipe (20), wherein an internal space in which a vehicle component is disposed is formed between the pair of left and right side gussets (26L and 26R) in a vehicle width direction, an opening section (35) opened in a forward/rearward direction is formed in the side gussets (26L and 26R), and an opening-side flange (37) curved inward in the vehicle width direction is formed at an outer circumferential edges (36) of the opening sections (35) of the side gussets (26L and 26R).