Electrical Connector Tower Structure to Prevent Weld-Line Cracking
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Solution Overview
Problem
Electrical connectors, such as DDR5 connectors, are prone to cracking at weld lines due to operational forces, reducing their mechanical strength and reliability.
Innovation Solution
The design includes a housing with a tower extending from the body, where the cover portion is formed separately with higher mechanical strength material, reducing the risk of cracking by eliminating weld lines at thin portions and enhancing mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the housing is formed as a single integrated piece, then the manufacturing process is simpler, but weld lines appear at thin portions reducing mechanical strength
Solution Approach 1:
The housing is divided into two separate portions: the base portion and the cover portion. These portions are formed separately and then assembled together, which eliminates the weld lines that would occur in a single-integrated-piece construction. The segmentation allows each portion to be optimized independently, avoiding weak points at thin sections while maintaining manufacturing efficiency.
2Reliability
If the cover portion is made with higher mechanical strength material, then the risk of cracking is reduced, but the manufacturing complexity increases
Solution Approach 1:
Different portions of the housing are made from materials with different mechanical properties. The cover portion, which is more susceptible to cracking due to its thin geometry and operational forces, is made from a material with higher mechanical strength. The base portion can use a different material optimized for its specific requirements. This local differentiation of material quality addresses the specific vulnerability of the cover portion without unnecessarily complicating the entire housing manufacturing process.
Data Source
AI summary
A robust electrical connector is provided. The connector includes a housing body, conductive elements held by the housing body, and a slot extending in the housing body and configured to receive a mating component. The housing body has a mating face and a mounting face opposite the mating face. The conductive elements include mating portions curving into the slot and configured to mate with the mating component, and mounting portions extending out of the mounting face. The connector includes a tower extending from an end of the housing body, and a latch pivotably connected to the tower so as to secure the mating component in the slot at a locked position. The tower includes a base portion extending from an end of the housing body, and a cover portion disposed on the base portion. Such a configuration reduces the risk that the tower cracks during operation.