Connector Retainer Guide for Wire Bending Load Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In connectors with narrow spaces behind the connector, wires are bent at large angles, leading to increased loads and mutual interference, which restricts the freedom in arranging the wires.
Innovation Solution
A connector design with a housing that includes a wire draw-out opening and a retainer with a guide, where the retainer main body is positioned closer to the back of the housing, allowing wires to be bent at a moderate angle, reducing loads and interference, and featuring a metal shield bracket that covers the area from the retainer main body to the wire draw-out opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the retainer is positioned at the wire draw-out opening, then the structure is simple, but the wires must be bent at large angles causing increased loads and mutual interference
Solution Approach 1:
The retainer main body is positioned at the rear end of the housing in the depth dimension, rather than at the wire draw-out opening. This spatial repositioning creates a longer wire arrangement space, allowing wires to be bent at moderate angles and reducing bending loads while maintaining structural simplicity
2Ease of operation
If wires are drawn out at the wire draw-out opening, then the connection is direct, but the bending angle is large causing mutual interference between wires
Solution Approach 1:
The wire draw-out position is moved to the rear end of the housing, extending the wire arrangement space in the depth dimension. This allows wires to be arranged and bent with greater freedom at moderate angles before exiting, reducing mutual interference while maintaining direct connection capability
3Force
If the retainer main body is positioned at the rear end of the housing, then the wire bending angle is moderate reducing loads, but the mounting operation becomes more complex
Solution Approach 1:
A guide is provided on the retainer main body that extends in the wire draw-out direction. This guide facilitates the mounting operation by guiding the retainer main body into the correct position at the rear end of the housing, preventing improper posting during assembly, and ensuring proper alignment before the wires are arranged
Data Source
AI summary
A connector (10) includes a housing (30) with a wire draw-out portion (34) from which wires (W) are drawn out. Rubber plugs (27) are accommodated in rubber plug accommodating portions (41) in the housing (30) and seal between the wires (W) and inner peripheral surfaces of the rubber plug accommodating portions (41). A back retainer (50) is mounted through a wire draw-out opening (34A) in the wire draw-out portion (34) and retains the rubber plugs (27). The back retainer (50) includes a retainer main body (52) for preventing backward movements of the rubber plugs (27) while allowing the insertion of the wires W therethrough. A position where the wires (W) are drawn out backward in the retainer main body (52) is closer to a back part of the wire draw-out portion (34) than the wire draw-out opening (34A).