Chip Connector Terminal Structure for Stable Contact Retention
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Solution Overview
Problem
Existing chip connectors suffer from poor contact between the resilient contacting arm and the abutting section due to a linear edge contacting a curved surface, leading to inadequate electrical connection.
Innovation Solution
A chip connector design featuring conductive terminals with an elastic arm, an inclined portion, and a resisting portion, where the elastic arm's inclined portion abuts against the resisting portion when pressed, enhancing the contact and electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a linear edge of the resilient contacting arm contacts the curved abutting section, then the structure is simple, but the contact quality is poor
Solution Approach 1:
The contacting arm is designed with a curved contacting surface instead of a linear edge, matching the curved abutting section. This curvature correspondence ensures full surface contact between the resilient contacting arm and the abutting section, significantly improving contact quality and electrical connection reliability.
2Reliability
If the resilient contacting arm is pressed against the abutting section, then electrical connection is established, but contact instability occurs due to poor geometric matching
Solution Approach 1:
Both the contacting surface of the resilient contacting arm and the abutting section are designed with corresponding curved geometries. This ensures stable full-surface contact during compression, preventing point-contact instability and ensuring reliable electrical connection throughout the operational range.
Solution Approach 2:
The contacting arm incorporates an inclined portion that changes the contact geometry dynamically. As the arm is pressed, the inclination angle varies, allowing the curved contacting surface to maintain optimal contact with the abutting section throughout the compression stroke, enhancing both stability and reliability.
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
This design improves the retention and electrical connectivity between the chip module and the circuit board by ensuring a stable and effective contact between the terminal components, enhancing the overall performance of the chip connector.
Implementation Method 1
each terminal comprising a fixing portion, an elastic arm extending from the fixing portion... the elastic arm comprising an upward portion, an inclined portion extending obliquely from the upward portion, and a contacting portion bending from the inclined portion
Data Source
AI summary
A chip connector includes: an insulative housing defining an upper face, a lower face, and plural terminal grooves extending through the upper face and the lower face; and plural conductive terminals received in the terminal grooves respectively, each terminal including a fixing portion, an elastic arm extending from the fixing portion, a tail portion, and an accessory portion, the elastic arm including an upward portion, an inclined portion extending obliquely from the upward portion, and a contacting portion bending from the inclined portion, wherein the accessory portion comprises a slanting portion with a resisting portion at a free end thereof, the slanting portion faces and extends toward the fixing portion, and the inclined portion abuts against the resisting portion when the elastic arm is moved downwards.