Shielding Plate Angled Lugs for Connector Positioning
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Solution Overview
Problem
Existing shielding plates for plug connector parts on printed circuit boards face challenges in ensuring secure, stress-free installation and compensation for production tolerances, while maintaining durability and preventing detachment during transport or maloperation.
Innovation Solution
A shielding plate with angled lugs forming a zigzag arrangement and a detent edge, featuring a central opening and pegs that act as barbed hooks, ensuring correct positioning and secure attachment by allowing exclusive assembly from above and automatic readjustment, reducing material usage and enhancing resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resilient shielding plate is used to compensate for installation tolerances, then contact reliability between the socket and printed circuit board is improved, but stress between components increases which reduces durability
Solution Approach 1:
The shielding plate utilizes a resilient, flexible structure that can elastically deform to accommodate installation tolerances while maintaining continuous electrical contact. The flexibility allows the plate to absorb misalignment stresses without transmitting excessive forces to connected components, thus preserving durability while ensuring reliable contact.
2Ease of manufacture
If conventional lugs are used for positioning the shielding plate, then assembly is simplified, but the shielding plate cannot prevent unintended detachment during transport or maloperation
Solution Approach 1:
The lugs are designed with asymmetric geometry featuring inclined planes and detent edges that create a ratcheting effect. The inclined planes allow easy insertion in one direction, while the detent edges with corresponding detent receptacles prevent reverse movement, thereby securing the shielding plate against unintended detachment during transport or maloperation while maintaining simple assembly.
3Ease of operation
If the shielding plate allows assembly from multiple directions, then ease of installation is improved, but correct positioning cannot be ensured
Solution Approach 1:
The lugs incorporate asymmetric inclined planes that are geometrically configured to permit insertion only from a specific direction. The angle and orientation of these planes ensure that the shielding plate can be assembled exclusively from above, automatically guiding correct positioning while preventing incorrect insertion attempts, thus combining installation flexibility with positioning precision.
4Reliability
If material is added to enhance protection during transport, then durability is improved, but device complexity and material usage increase
Solution Approach 1:
The lugs are designed with asymmetric inclined planes and detent edges that work together to provide mechanical locking without requiring additional protective components. The geometric configuration itself creates the protection mechanism, preventing detachment through the ratcheting effect while maintaining structural simplicity and avoiding increased device complexity.
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 solution provides a play-free installation process, improved positioning, and enhanced protection during transport, ensuring secure attachment and preventing unintended detachment, while maintaining durability and accurate contact points.
Implementation Method 1
the shielding plate being configured to be resilient in the direction of the axis of the opening
Implementation Method 2
a detent receptacle is provided in the flange, in which the detent edge engages in the end position
Data Source
AI summary
A shielding plate through which a cylindrical insulating body of a plug connector part for installation on a circuit board is passable, the shielding plate including: an opening surrounding the insulating body, the shielding plate being resilient in a direction of an axis of the opening and having angled lugs at opposite edges. Each lug of the angled lugs has a first flank and a second flank adjoining the first flank, the first and second flanks each forming an oblique plane and, by way of a zigzag-shaped arrangement as seen in a side view, forming a detent edge which is situated between the first and second flanks and which faces inward toward an other lug.