LGA Connector Pick Up Cap with Concave Terminal Protection
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Solution Overview
Problem
Conventional LGA connector assemblies with pick up caps have gaps that expose terminals to external elements, leading to contamination by dust and solder due to incomplete coverage when the top cover is closed.
Innovation Solution
An LGA connector assembly with a pick up cap featuring concaved portions that can bear external forces, ensuring complete coverage of terminals and preventing contamination by incorporating a rotatable cover with pressing portions that insert into the concaved areas of the pick up cap, maintaining the terminals within the insulative housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the top cover is designed with pressing portions to close the insulative housing, then the assembly is compact and secure, but gaps expose terminals to external contaminants
Solution Approach 1:
The pick up cap is designed with concaved portions that extend in the thickness direction of the insulative housing. When the top cover is closed, these concaved portions protrude into the receiving cavity to cover terminal contact areas, providing protection in the thickness dimension without interfering with the pressing operation in the horizontal dimension.
Solution Approach 2:
The pick up cap features localized concaved portions only at specific locations where terminal contact occurs, rather than covering the entire housing. This localized protection approach prevents terminal contamination while maintaining the overall compact design and pressing operation functionality.
2Object-affected harmful factors
If the pick up cap is designed with concaved portions to cover terminals, then terminal protection is improved, but the cap structure becomes more complex
Solution Approach 1:
The pick up cap is segmented into a flat main body and multiple concaved portions that are integrally formed but functionally distinct. Each concaved portion is localized and serves a specific terminal contact area, allowing the cap to provide targeted protection without requiring a completely complex three-dimensional structure.
3Force
If the top cover pressing portions directly contact the pick up cap, then closing force is effective, but the pick up cap may be damaged or deformed
Solution Approach 1:
The concaved portions are pre-formed recesses in the pick up cap that are designed to receive and distribute the pressing force from the top cover. This beforehand structural preparation allows the cap to absorb closing forces without sudden deformation or damage, as the force is distributed across the concaved geometry rather than concentrated on flat surfaces.
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 effectively shields all terminals from external contaminants, ensuring they remain clean and protected while allowing for easy assembly and movement using a vacuum-suction device.
Implementation Method 1
the LGA connector assembly can be accurately and rapidly assembled to a predetermined position on a PCB by means of a vacuum-suction device
Data Source
AI summary
An electrical connector assembly includes a socket body defining a receiving cavity, a pick up cap attached detachably onto the socket body and a movable fixing mechanism surrounding the socket body. The fixing mechanism includes a rotatable cover defining an open position and a close position and having two pressing portions extending towards the receiving cavity of the socket body. The pick up cap covers all terminals in the socket body and includes a planar body having concaved portions for receiving the corresponding pressing portions to prevent the pressing portions from interfering with top surface of the planar body of the pick up cap.