Circuit Board Connector Terminals With Curved Floating Portion
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Solution Overview
Problem
Existing electrical connectors for circuit boards have limited directionality and deformation capability, restricting the degree of freedom in floating motion and the amount of floating, particularly due to the rectilinear configuration of floating portions.
Innovation Solution
The electrical connector design features terminals with a connection portion, a contact point portion, and a floating portion that is bulging in the connector width direction, allowing resilient deformation in multiple directions, including the terminal array direction, to enhance the degree of freedom and amount of floating, while maintaining a compact height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the floating portion is formed in a rectilinear configuration, then the terminal height can be kept compact, but the degree of freedom in floating direction and the amount of floating are limited
Solution Approach 1:
The floating portion is formed with a curved configuration instead of a rectilinear shape, allowing it to bulge in the connector width direction. This curvature enables the floating portion to deform in multiple directions (connector width direction, terminal array direction, and direction perpendicular to the circuit board), significantly increasing the degree of freedom and amount of floating while maintaining a compact terminal height.
2Adaptability or versatility
If the floating portion is formed with a curved configuration bulging in the connector width direction, then the degree of freedom in floating direction is improved, but the manufacturing complexity increases
Solution Approach 1:
The floating portion is formed with a specific curved configuration where the curvature radius and bulge direction are optimized to achieve the desired multi-directional deformation capability. By carefully selecting the curvature parameters and forming the floating portion to bulge in the connector width direction, the design achieves high adaptability in floating directions while maintaining manufacturability through standardized forming processes.
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 increases the degree of freedom and amount of floating motion of the movable housing, improving the connector's flexibility and performance by enabling greater deformation without increasing the terminal height, and ensures appropriate differential impedance for signal transmission.
Implementation Method 1
a floating portion located between the stationary-side retained portion and the movable-side retained portion and capable of resilient deformation
Data Source
AI summary
The terminals 111 have a connection portion 111D formed at one end of the terminals 111 and capable of being connected to a mounting face of a circuit board, a contact point portion 111E-1 formed at the other end of the terminals 111 and capable of making contact with a counterpart connect body, a stationary-side retained portion 111A retained in a stationary housing, a movable-side retained portion 111B retained in a movable housing, and a floating portion 111C located between the stationary-side retained portion 111A and the movable-side retained portion 111B and capable of resilient deformation, and the floating portion 111C is formed bulging in the connector width direction, which is parallel to the aforementioned mounting face and perpendicular to the terminal array direction.