Vehicle Floor Wire Harness Restrictor for Water Ingress Control
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Solution Overview
Problem
The connectors in wire harnesses have lower water resistance compared to the wire harnesses themselves, posing a risk of water ingress and damage in vehicle floor structures.
Innovation Solution
A vehicle floor structure with a restrictor that positions the crossover portion of the wire harness below the connector, preventing water from reaching the connector, and includes a harness holder member and support member to facilitate installation and water management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the crossover portion of the wire harness is positioned freely, then installation is flexible, but water entering from the interface can reach the connector through the crossover portion
Solution Approach 1:
The restrictor is installed in advance during the assembly process to establish a water barrier before water ingress can occur. By pre-positioning the restrictor to constrain the crossover portion below the interface, the system proactively prevents water from reaching the connector rather than reacting to water ingress after it occurs
2Reliability
If the restrictor is disposed on the support member below the connector, then water resistance is enhanced, but installation complexity increases
Solution Approach 1:
The restrictor is merged with the support member structure, combining two functional elements into a single integrated component. This integration reduces the number of separate parts that need to be assembled and simplifies the installation process while maintaining the water resistance function
Data Source
AI summary
A vehicle floor structure includes a first floor member arranged on a floor of a vehicle; a second floor member arranged in a position that is horizontally offset with respect to the first floor member and is adjacent to the first floor member; a wire harness including a portion arranged below the first floor member and the second floor member, extending from a first floor member side to a second floor member side, and having an end situated on the first floor member side and coupled to a connector; and a restrictor configured to restrict a crossover portion of the wire harness to be below the connector. The crossover portion is a portion of the wire harness situated below an interface between the first floor member and the second floor member.