Connector Lid Structure With Elastic Wire Load Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing connectors allow coaxial cables to be drawn outwards, leading to a bending force that can cause the cover to come loose due to the pressing force of the electric wire.
Innovation Solution
A connector design featuring a terminal metal fitting with a U-shaped holding part and a separate lid part, including an elastic pressure-receiving part that elastically deforms under the electric wire's pressing force, distributing stress to prevent the lid from separating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electric wire is drawn out from the rear surface of the housing, then the cable routing flexibility is improved, but the bending force on the wire causes the lid part to come loose
Solution Approach 1:
The elastic pressure-receiving part is designed to change its physical state from rigid to elastically deformable, allowing it to absorb the bending force through elastic deformation rather than rigid resistance. This parameter change enables the structure to accommodate cable movement while maintaining lid attachment.
Solution Approach 2:
The elastic pressure-receiving part is specifically positioned at the location where the lid part contacts the holding part, creating a localized stress absorption zone. This local quality change allows the lid to remain securely attached at critical points while accommodating overall cable movement.
2Ease of manufacture
If the lid part is formed as a separate member from the holding part, then the manufacturing flexibility and assembly are improved, but the pressing force from the electric wire can cause separation between the lid and holding part
Solution Approach 1:
The lid part is divided into functionally distinct segments: the plate-like covering part for structural coverage and the elastic pressure-receiving part for stress absorption. This segmentation allows each part to be optimized for its specific function while maintaining overall structural integrity.
Solution Approach 2:
The elastic pressure-receiving part acts as an intermediary element between the lid part and the holding part, absorbing and distributing the pressing force from the electric wire. This intermediary function prevents direct force transmission that would cause separation between the lid and holding part.
3Stress or pressure
If the elastic pressure-receiving part is designed to be elastically deformable, then the stress distribution is improved, but the structural rigidity of the lid is reduced
Solution Approach 1:
Only the elastic pressure-receiving part is designed with elastic deformability, while the rest of the lid part maintains its structural rigidity. This localized quality change allows stress distribution improvement without compromising the overall structural integrity of the lid.
Solution Approach 2:
The lid part is segmented into the rigid plate-like covering part for structural support and the elastic pressure-receiving part for stress absorption. This segmentation allows the rigid portion to maintain structural integrity while the elastic portion distributes stress uniformly.
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
The design effectively suppresses stress concentration on the lid, preventing it from detaching by distributing the force through elastic deformation and friction resistance, ensuring the cover remains attached.
Implementation Method 1
an elastic pressure-receiving part that protrudes from the plate-like covering part into the terminal housing part and is elastically deformable under a pressing force of the electric wire
Data Source
AI summary
A connector includes small-diameter shielded terminals 51 that are connected to small-diameter shielded electric wires 61, and a housing 10 that includes wide terminal housing parts 73 and a narrow terminal housing part 74. The wide terminal housing parts 73 include wide holding parts 35 and a lid part 41. The narrow terminal housing part 74 includes a narrow holding part 36 and the lid part 41. The lid part 41 includes a plate-like covering part 42 that covers openings in the wide holding parts 35 and the narrow holding part 36, and elastic pressure-receiving parts 43 that protrude from the plate-like covering part 42 into the wide terminal housing parts 73 and the narrow terminal housing part 74 and are elastically deformable under pressing forces of the small-diameter shielded electric wires 61 or the coated electric wire 67.