Electric Wire Holder for Shielding Pipe Bending
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Solution Overview
Problem
In hybrid vehicles, the electric wires inserted into shielding pipes for protection often have their terminal fittings' positions displaced during the bending process of the pipes, leading to misalignment and potential damage to wire coatings.
Innovation Solution
An electric wire holder with a projecting holding piece is attached to the shielding pipe to fix the draw-out position of terminal fittings, preventing displacement during bending and protecting wire coatings, while maintaining a reduced number of parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the shielding pipe is bent into a predetermined shape after electric wires are inserted, then the shielding pipe can be disposed along a predetermined route under the floor, but the electric wires are drawn into the inside of the shielding pipe and terminal fitting positions are displaced from set values
Solution Approach 1:
The holder is attached to the shielding pipe before bending processing to preliminarily fix the terminal fittings at their desired positions. The holding piece protruding from the holder engages with the terminal fittings, preventing them from being drawn into the shielding pipe during subsequent bending operations. This preliminary positioning action ensures that the terminal fittings maintain their set positions even after the shielding pipe is bent into its final shape.
2Reliability
If the electric wires are inserted into the shielding pipe before bending processing, then the wires can be protected during assembly, but the wires cannot maintain their drawn-out positions during bending
Solution Approach 1:
The holder acts as an intermediary device between the shielding pipe and the terminal fittings. It provides a stable reference structure that is attached to the shielding pipe but maintains the terminal fittings at fixed positions relative to the pipe. The holding piece on the holder serves as a mediator that physically restrains the terminal fittings, preventing them from moving during bending while still allowing the shielding pipe to be bent into its required shape.
3Reliability
If multiple separate components are used to hold wires and protect edges, then the functions can be performed effectively, but the number of parts increases
Solution Approach 1:
The holder integrates multiple functions into a single component: it provides edge protection by covering the end of the shielding pipe, holds the electric wires in position through the protruding holding piece, and prevents terminal fitting displacement during bending. By combining these previously separate functions (edge protection, wire holding, and position fixation) into one integrated holder assembly, the design reduces the total number of parts while maintaining effective performance of all required functions.
Data Source
AI summary
There is provided an electric wire holder for holding electric wires connected to terminal fittings at end portions of the wires, the holder configured to attach to a shielding pipe to cover an edge of the shielding pipe into which the electric wires are inserted and from which the terminal fittings and a portion of the electric wires are drawn out to an outside of the shielding pipe, the holder comprising: a first holding piece configured to hold the portion of the electric wires that is drawn out from the shielding pipe and to fix a draw-out position of the terminal fittings.