Connector Wire Cover Detachment Prevention
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Solution Overview
Problem
Existing connectors with wire covers are prone to detachment due to external forces, leading to incomplete connections and potential interference issues during the mating process of housings.
Innovation Solution
The connector design incorporates a wire cover with a part accommodated in a receptacle, featuring a cover lock and engaging portion that resist resilient deformation, along with detachment preventing pieces and a backlash suppressing piece, ensuring secure attachment and preventing loose movements, thus maintaining engagement even under external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire cover is mounted on the housing main body with a cover lock and cover engaging portion, then the wire cover can be held securely, but the wire cover may still detach if the side wall is deformed resiliently by external force
Solution Approach 1:
The wire cover is divided into two functional parts: a first part with the cover lock for engagement, and a second part accommodated in the receptacle for stabilization. This segmentation allows each part to perform its specific function - the first part provides detachable engagement while the second part prevents resilient deformation through receptacle constraints
Solution Approach 2:
The receptacle acts as an intermediary structure between the housing main body and the wire cover. It receives and stabilizes the second part of the wire cover, preventing resilient deformation of the side wall that would otherwise cause the cover lock to disengage from the cover engaging portion
2Ease of operation
If the wire cover is made resiliently deformable for easy mounting, then the cover lock can engage the cover engaging portion, but the wire cover may detach under external force
Solution Approach 1:
The wire cover is segmented into a first part for engagement and a second part for stabilization. The second part is accommodated in the receptacle which prevents resilient deformation, thereby maintaining retention reliability while the first part retains deformability for ease of mounting
Solution Approach 2:
Different parts of the wire cover have different mechanical properties. The first part maintains resilience for easy engagement, while the second part is constrained by the receptacle to prevent deformation. This local differentiation of mechanical properties resolves the contradiction between ease of mounting and retention reliability
3Adaptability or versatility
If the wire cover can be easily detached by external force, then the cover lock can disengage from the cover engaging portion, but this leads to incomplete connections and interference issues
Solution Approach 1:
The wire cover is divided into a first part that can detach and a second part that remains stabilized in the receptacle. This segmentation allows controlled detachability for adaptability while maintaining connection completeness through the stabilized second part
Solution Approach 2:
The potential harmful effect of resilient deformation is converted into a benefit: the first part can deform for easy engagement and controlled detachment, while the second part's stabilization in the receptacle prevents harmful complete detachment, thus maintaining connection reliability
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
This design effectively prevents wire cover detachment from the housing main body, ensures proper connection, and simplifies the connector construction by eliminating the need for special accommodation structures, while allowing for smooth insertion and maintaining stability during mating.
Implementation Method 1
The cover lock and the cover engaging portion are engaged resiliently with each other accompanied by the resilient deformation of the side wall to hold the wire cover on the housing main body
Implementation Method 2
The part of the wire cover to be accommodated in the receptacle prevents resilient deformation of the side wall
Data Source
AI summary
A wire cover (60) is mounted on a rear part of a housing main body (21) to cover wires (50) drawn out from the rear surface of the housing main body (21). Cover locks (72) are provided on side walls (62) of the wire cover (60), and cover engaging portions (33) are provided on side surfaces of the housing main body (21). The cover locks (72) and the cover engaging portions (33) resiliently engage each other as the side walls (62) are resiliently deformed to hold the wire cover (60) on the housing main body (21). Detachment preventing pieces (76) are provided in parallel with the cover locks (72) on the side walls (62). The detachment preventing pieces (76) are accommodated in the receptacle when the housings (10, 20) are connected properly.