Resilient Shell Spring Member for Low-Profile Connector Stability
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Solution Overview
Problem
Existing circuit board connecting devices face challenges in maintaining stable electrical connections when reduced in thickness for low-profile designs, as the resilient restoring force is compromised, leading to poor engagement between protrusions and recesses, resulting in unstable coupling and potential disconnection.
Innovation Solution
A circuit board connecting device featuring a resilient shell member with a strip-shaped portion, bent projecting portions, and extending portions that form a spring member, allowing for resilient contact and enhanced pressing force, ensuring stable coupling even with reduced thickness, and minimizing susceptibility to changes over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the circuit board connecting device is reduced in thickness for low-profile designs, then the profile height is improved, but the resilient restoring force deteriorates, leading to poor engagement between protrusions and recesses
Solution Approach 1:
The patent changes the structural parameters of the resilient shell member by introducing bent projecting portions and extending portions that form a spring member configuration. This allows the member to maintain sufficient resiliency and restoring force even when the overall thickness is reduced, thereby resolving the contradiction between low-profile design and engagement stability.
Solution Approach 2:
The resilient shell member is segmented into distinct functional portions: a strip-shaped portion, bent projecting portions, and extending portions. Each segment serves a specific function in maintaining engagement stability, with the bent and extending portions specifically designed to provide the necessary resilient restoring force in the reduced thickness configuration.
2Length of moving object
If the resilient shell member is reduced in thickness, then the low-profile design is achieved, but the pressing force for maintaining coupling deteriorates
Solution Approach 1:
The patent modifies the geometric parameters of the resilient shell member by creating bent projecting portions and extending portions that form a spring member. This structural parameter change enables the member to generate sufficient pressing force through elastic deformation even when the overall thickness is reduced, thus maintaining effective coupling without compromising the low-profile design.
3Volume of moving object
If the circuit board connecting device is made thinner, then the space occupation is reduced, but the coupling stability deteriorates due to compromised resiliency
Solution Approach 1:
The resilient shell member is divided into functional segments including the strip-shaped portion, bent projecting portions, and extending portions. This segmentation allows the device to occupy less space overall while the specific bent and extending portions maintain the necessary resiliency for stable coupling, thus resolving the contradiction between reduced volume and coupling stability.
Solution Approach 2:
The patent employs a flexible resilient shell member with bent and extending portions that can deform elastically to maintain coupling stability. This flexible structure allows the device to be made thinner and occupy less space while still providing sufficient resiliency to maintain stable coupling between the circuit board connecting device and the mate connecting device.
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 device maintains proper and stable coupling with the mate connecting device, maintaining sufficient resiliency and preventing degradation in engagement performance, even when subjected to thickness reduction for low-profile designs.
Implementation Method 1
The whole of the strip-shaped portion between the first and second fixing portions, the bent projecting portions and the extending portions constitute a spring member
Implementation Method 2
causing an inner surface portion to come into resilient contact with an outer surface portion of the mate connecting device
Data Source
AI summary
A circuit board connecting device comprising an insulating housing, a plurality of conductive contacts arranged on the insulating housing, and a resilient shell member attached to the insulating housing, wherein the resilient shell member includes a strip-shaped portion surrounding partially a board-facing surface portion of the insulating housing so as to cause an inner surface portion thereof to come into resilient contact with an outer surface portion of a mate connecting device, a pair of bent projecting portions each elongating to be bent from an end portion of the strip-shaped portion for projecting in a direction remote from the insulating housing, and a pair of extending portions each extending further to be bent from an end portion of the bent projecting portion so as to be opposite to the strip-shaped portion, so that the whole of the strip-shaped portion, the bent projecting portions and the extending portions constitute a spring member.