Electrical Connector Pulling Mechanism Prevents Substrate Warpage
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Solution Overview
Problem
Existing electrical connectors cause warpage of chip modules during movement due to pushing forces, which is not effectively addressed by prior designs.
Innovation Solution
An electrical connector assembly with a cover that has a pulling portion located in front of the virtual center line, allowing for a pulling force to be applied to the substrate, and a driving member that moves the cover horizontally to ensure the conducting portions contact the terminals without warpage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chip module is pushed by the rear side surface of the hollow portion to move forward, then the chip module can be driven to move, but the pushing force easily causes warpage of the chip module during movement
Solution Approach 1:
The patent inverts the conventional pushing mechanism by introducing a pulling portion that applies a pulling force to the front side surface of the chip module instead of pushing from the rear side. This inversion changes the direction of the applied force, allowing the chip module to be drawn forward along the guide slope without experiencing the warpage-causing pushing force from behind, thus resolving the contradiction between enabling movement and maintaining flatness.
2Stability of the object's composition
If the pulling portion is located in front of the virtual center line to apply pulling force, then warpage is avoided, but the structural complexity of the cover increases
Solution Approach 1:
The patent merges the pulling portion with the front side surface of the hollow portion, making them an integrated structural feature rather than a separate component. The front side surface itself forms the pulling portion by being positioned in front of the virtual center line, thereby achieving the warpage-prevention function without adding extra parts or increasing overall structural complexity.
3Reliability
If the driving portion drives the cover to move horizontally forward, then electrical connection is achieved, but the force distribution may cause deformation if not properly positioned
Solution Approach 1:
The patent employs asymmetric positioning of the pulling portion relative to the virtual center line of the hollow portion. By placing the pulling portion in front of the center line rather than symmetrically centered, the force application point is optimized to create a moment that counteracts potential deformation, ensuring both reliable electrical connection through horizontal movement and maintenance of chip module shape stability.
Data Source
AI summary
An electrical connector includes: an insulating body; multiple terminals respectively accommodated in the insulating body; a cover covering the insulating body in a front-rear sliding manner and having a hollow portion to accommodate a mating plug including a substrate and multiple conducting portions; and a driving member. Each terminal has a contact portion. The hollow portion has a virtual center line extending in a left-right direction. The cover ihas a pulling portion located in front of the virtual center line to abut the substrate forward. The driving member has a driving portion located in front of the hollow portion. After the substrate is mounted downward into the hollow portion, the driving portion drives the cover to move horizontally forward relative to the insulating body, and the pulling portion pulls the substrate forward, such that the conducting portions move forward to be in contact with the contact portions of the terminals.