Vehicle Wire Harness Layout With Shared Pipe Fixation
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Solution Overview
Problem
The existing wire harness routing under a vehicle's floor requires multiple fixing points for high and low voltage electrical wires and a pipe, which complicates the routing process and increases the number of points where wires need to be fixed, thereby reducing workability.
Innovation Solution
A wire harness configuration where a second wire is routed between a first wire and a pipe, with sections extending along both the first wire and the pipe, allowing for reduced fixing points and increased routing flexibility by using separate fixing members for collective fixation of the wires and pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple electrical wires are routed alongside each other under the floor and fixed individually to the vehicle, then each wire can be securely fixed, but the number of fixing points increases, reducing workability during routing
Solution Approach 1:
The patent combines multiple electrical wires (first wire and second wire) and the pipe into a single bundled structure where the second wire is fixed to both the first wire and the pipe. This merging reduces the number of separate fixing points needed while maintaining secure fixation of all components.
Solution Approach 2:
The second wire serves multiple functions: it acts as an electrical conductor and simultaneously serves as a fixing element that secures both the first wire and the pipe together. This multi-functionality reduces the need for separate fixing members.
2Device complexity
If the second wire is fixed to both the first wire and the pipe, then the number of fixing members is reduced, but the routing configuration becomes more complex
Solution Approach 1:
The second wire is pre-configured with a specific routing pattern that includes first and second sections positioned at different distances from the first wire. This preliminary configuration allows the wire to naturally accommodate the branching structure without requiring additional complex fixing mechanisms.
Data Source
AI summary
A wire harness for routing in a vehicle in which a pipe through which a liquid flows is attached under a floor, the wire harness including: a first wire to be routed alongside the pipe; and a second wire to be routed in between the first wire and the pipe, and fixed to both the first wire and the pipe, wherein the second wire has: a first section extending along the first wire; and a second section extending along the pipe at a position spaced further from the first wire than is the first section in a direction in which the pipe and the first wire are arranged alongside each other.