Power Feeder Device for Sliding Structure
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Solution Overview
Problem
Conventional power supply apparatuses for sliding structures face issues such as increased size, weight, and cost at the sliding door side, interference between wiring harnesses and fixed structures, and reduced bending durability due to frequent bending in a U-like shape, especially when the sliding door is opened.
Innovation Solution
A power supply apparatus with a fixed structure-side device comprising an outer member, an inner member, and a harness trajectory regulation wall that rotates to prevent interference and improve durability by allowing the wiring harness to bend in an L-like shape, reducing the size and weight of the power supply structure and enhancing bending durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wiring harness is wired in a substantially straight manner from the vehicle body side to the sliding door side, then the power supply efficiency is improved, but the wiring harness interferes with the vehicle body when the sliding door is opened
Solution Approach 1:
The patent introduces a dynamic wiring harness system that can change its configuration based on the sliding door position. The wiring harness includes a flexible section that can bend and relocate automatically when the sliding door opens, transitioning from a straight configuration to a bent configuration that avoids interference with the vehicle body while maintaining power supply functionality
2Object-affected harmful factors
If the wiring harness is bent in a substantially U-like shape when the sliding door is opened, then the interference with the vehicle body is prevented, but the bending durability of the wiring harness decreases
Solution Approach 1:
The patent incorporates a preliminary action mechanism where the wiring harness is pre-configured with a flexible section that can be selectively bent. This flexible section includes a bypass portion that can be positioned in advance to create an L-shaped or U-shaped configuration when needed, allowing the wiring harness to avoid sharp bends and repeated stress cycles that would reduce durability
Solution Approach 2:
The patent uses curved configurations for the wiring harness when bending is necessary. Instead of sharp angles, the wiring harness forms smooth L-shaped or U-shaped curves that distribute mechanical stress more evenly, reducing the risk of damage at bend points and improving overall bending durability
3Reliability
If components such as case and guide rail are provided at the sliding door side, then the power supply function is ensured, but the space and layout for mounting other components is limited and the size and weight increase
Solution Approach 1:
The patent extracts the power supply components from the sliding door side and relocates them to the vehicle body side. The wiring harness is configured to extend from the vehicle body side power supply device directly to the sliding door, eliminating the need for a separate case and guide rail assembly on the sliding door. This extraction reduces the volume and weight of the sliding door assembly while maintaining the power supply function
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 reduces interference and maintains the durability of the wiring harness by allowing it to bend smoothly in an L-like shape, thereby minimizing damage and maintaining reliable power supply while reducing the overall size and weight of the power supply apparatus.
Implementation Method 1
an inner member which is supported to the outer member so as to rotate in a horizontal direction and retains one end portion of the exterior member
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
Object is to downsize a sliding structure-side and/or fixed structure-side power supply device and prevent interference between a wiring harness and a fixed structure in a fully-opened state of a sliding structure. A power supply apparatus for sliding structure (21) includes a wiring harness having an exterior member (7) wired from a fixed structure-side power supply device (4) to the sliding structure (5) side, the fixed structure-side power supply device (4) including an outer member (8) fixed to the fixed structure (1), an inner member (9) supported to the outer member so as to rotate in a horizontal direction and configured to support one end portion of the exterior member, and a harness trajectory regulation wall (11) configured to rotate integrally with the inner member. When the sliding structure (5) is fully-opened, the harness trajectory regulation wall (11) projects outward from the outer member in a thickness direction of the sliding structure, such that the exterior member (7) arranged along the harness trajectory regulation wall is moved away from the fixed structure toward the sliding structure side, preventing interference between the exterior member and the fixed structure.