Electrical Connector Sleeve for IC Positioning Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical connectors for IC packages on printed circuit boards face inaccuracies in positioning due to deformation of insulating housing side walls during soldering, leading to poor or failed electrical connections.
Innovation Solution
An electrical connector design featuring an insulating housing with a sleeve assembly, where the sleeve has a supporting portion with perpendicular abutting walls that engage with the housing to maintain cavity shape and accurately position the IC package, preventing expansion and ensuring stable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulating housing is soldered on the PCB, then the electrical connector can be securely mounted and electrically connected, but the side walls of the insulating housing deform during soldering causing cavity expansion and poor positioning accuracy
Solution Approach 1:
The insulating housing is divided into two functional parts: the main body that provides electrical connection and mounting, and the separate positioning structure (protrusions or ribs) that specifically负责 positioning the IC package. This segmentation allows the positioning function to be isolated from the thermal deformation of the soldering process, maintaining positioning accuracy while still achieving reliable electrical connection.
Solution Approach 2:
The positioning protrusions or ribs are pre-formed on the insulating housing before the soldering process. These positioning features are created in advance with precise dimensions and positions, ensuring that when the IC package is placed, it is accurately positioned before soldering occurs, preventing positioning errors that would result from thermal deformation during soldering.
2Volume of moving object
If the cavity is made large enough to accommodate the IC package, then the IC package can be housed, but the side walls expand during soldering causing the IC package to be poorly positioned
Solution Approach 1:
The insulating housing has different structural properties in different regions: the main cavity walls are designed to provide sufficient volume, while specific localized regions contain reinforcing ribs or protrusions that resist thermal expansion during soldering. These localized reinforcement features maintain positioning accuracy without compromising the overall cavity volume needed to accommodate the IC package.
Data Source
AI summary
An electrical connector for electrically connecting an IC package to a printed circuit board includes an insulating housing, a number of contacts received in the insulating housing and at least one sleeve assembled on the insulating housing. The insulating housing includes a bottom wall and a number of side walls extending upwardly from the bottom wall. The bottom wall and the side walls define a cavity for accommodating the IC package. The sleeve is assembled on the side wall and defines a supporting portion towards the cavity. The supporting portion includes a pair of abutting walls perpendicular to each other.